CK Worldwide CK 3 Series Complete Pyrex Gas Saver Cup Front End Kit

Ck Worldwide's Gas Saver™ front-end kit allows the users to save up to 40% of shield gas consumption while providing better shield gas coverage patterns. With better shielding gas coverage patterns the welder can extend the tungsten up to 6 x the diameter of the electrode beyond the edge of the gas cup. (This is achieved in draft free areas using argon gas.)Alumina push on or Pyrex high temperature glass cups are available. Alumina cups are durable, impact resistant and handle high temperature welding applications. Pyrex glass cups are used in applications where visibility is an issue such as inside corners, inside pipe, around tubing, etc.The Gas Saver kits will retrofit 3 series (CK17, CK18, CK26) torches or competitive brand equivalents using a replaceable white Teflon heat shield on a silicon rubber torch body.

CK Worldwide CK 2 Series Complete Pyrex Cup Front End Kit

Ck Worldwide's Gas Saver™ front-end kit allows the users to save up to 40% of shield gas consumption while providing better shield gas coverage patterns. With better shielding gas coverage patterns the welder can extend the tungsten up to 6 x the diameter of the electrode beyond the edge of the gas cup. (This is achieved in draft free areas using argon gas.)Alumina push on or Pyrex high temperature glass cups are available.   Pyrex glass cups are used in applications where visibility is an issue such as inside corners, inside pipe, around tubing, etc.The Gas Saver kits will retrofit 2 series (CK9, CK20) torches or competitive brand equivalents using a replaceable white Teflon heat shield on a silicon rubber torch body. Part # Description Quantity 2P8GS CK #8 Pyrex Cup - 2/3 Series Gas Saver, 12.7mm bore x 32.6mm length 1 2C040GS CK Wedge Collet - 2 Series Gas Saver, 1.0mm 1 2HSGS CK Standard Heatshield - 2 Series Gas Saver 1 2CBGS CK Standard Collet Body - 2 Series Gas Saver, One Size Fits All 1 TAS040GS CK Tungsten Adapter - 2/3 Series Gas Saver, 1.0mm 1

CK Worldwide CK 2 Series Complete Pink Ceramic Front End Gas Saver Kit

Ck Worldwide's Gas Saver™ front-end kit allows the users to save up to 40% of shield gas consumption while providing better shield gas coverage patterns. With better shielding gas coverage patterns the welder can extend the tungsten up to 6 x the diameter of the electrode beyond the edge of the gas cup. (This is achieved in draft free areas using argon gas.)Alumina push on or Pyrex high temperature glass cups are available. Alumina cups are durable, impact resistant and handle high temperature welding applications. Pyrex glass cups are used in applications where visibility is an issue such as inside corners, inside pipe, around tubing, etc.The Gas Saver kits will retrofit 2 series (CK9, CK20) or competitive brand equivalents using a replaceable white Teflon heat shield on a silicon rubber torch body.

CK Worldwide CK TL26 Red Superflex Power Cable 3/8" Connection

CK TL26 Red Superflex Power Cable – 3/8" Connection The CK TL26 Red Superflex Power Cable is a high-performance, flexible welding cable designed to deliver maximum power transfer and durability in demanding welding environments. Featuring a 3/8" connection, this cable provides a secure and reliable fit for a wide range of welding machines and torches. Constructed with high-grade copper conductors, the Superflex cable offers exceptional conductivity while maintaining superior flexibility — even in cold or confined working conditions. The durable red rubber insulation provides excellent resistance to heat, oil, abrasion, and mechanical wear, ensuring long service life and consistent performance. Ideal for professional welders, fabrication shops, and industrial settings, the CK TL26 Superflex Power Cable combines strength, flexibility, and reliability for optimum welding efficiency. Key Features:   High-performance Superflex cable – provides maximum flexibility and power transfer 3/8" secure connection – compatible with a wide range of welding torches and machines High-quality copper conductors – ensure excellent electrical conductivity Durable red rubber insulation – resistant to heat, oil, and abrasion Professional-grade build – designed for heavy-duty industrial and workshop use

CK Worldwide CK230 Rigid Torch Body 300A

Replacement Watercooled CK230 Rigid Torch Body 300A Rated

CK Worldwide CK20RG Rigid TIG Torch Body

CK20RG CK20 Rigid Replacement TIG Torch Body 

CK Worldwide CK TL26 Rigid Torch Body 200 amp

Replacement CK TL26 Rigid TIG Torch Body  Air Cooled Torch Head 200A Rated Takes CK 3 Series (wp17,18,26) Universal Parts

CK Worldwide CK 2% Ceriated Grey Tungsten Electrodes Pack Of 10

CK 2% Ceriated Grey Tungsten Electrodes Pack Of 10 EWCe-2/WC20 Principal Oxide: 1.8-2.2% Cerium Oxide NON-RADIOACTIVE. Best for use in Alternative Current (A/C) or Direct Current (D/C) applications using inverter or transformer based constant current power sources. Good for low-alloyed steels, non-corroding steels, aluminium alloys, magnesium alloys, titanium alloys, nickel alloys, copper alloys. Good ignition and re-ignition properties, long service life, excellent arc stability. Low erosion rate, best at low amperage range, no spitting. Good D/C arc starts and stability

CK Worldwide CK Flexloc FL230 2 Series Water Cooled TIG Torch

The Flex-Loc™ series torch is a variable angle torch that locks into any position within a 360 degree rotation. Interchangeable heads allow different size tungsten and head sizes to be quickly and efficiently changed. The patented Flex-Loc™ TIG Torch is available in water cooled and gas cooled models. Great for applications requiring a unique angle yet allowing the user a rigid torch. Ergonomically designed to help eliminate fatigue.Applications: Cup walking on pipe root welds, welds that require a mirror to access weldment, welds requiring different tungsten sizes. 360 degree variable angle torch head Locks in any position Interchangeable head allows different configurations and head sizes Great for “walking the cup” on open root welds for pipe cutting Access hard to reach welds ergonomically Helps prevent carpal tunnel syndrome Fitted with CK's Superflex Cable Lightest most flexible cable assemblies available Available for all gas-cooled or water-cooled torches Lightweight silicon rubber hose with nylon overbraid protection to resist abrasion Replaces heavy, stiff cables increasing range of motion Stays flexible even in the coldest environments Great for intricate precise welding applications CK Colour Coded Superflex Cable   3/8" gas fittings Colour coded leads for quick identification Black argon hose Blue water hose Red power cable

CK Worldwide CK TIG Torch Switch With Velcro Attachment And Cable 4Mtr & 8Mtr

CK Torch Switch Add-On: CK TIG Torch Switch With Velcro Attachment And Cable 4Mtr & 8Mtr CK Momentary Flat Button Torch Switch With Velcro Strap For Use With All Size CK Torch Handles Comes With 3.9Mtr and 7.8Mtr Cable With No Plug So Your Specific Machine Plug Can Be Added  Velcro Strap Fastening Stops The Uncomfortable Edges Of Other Conventional Switch Button Housings

CK Worldwide CK AK-3 Accessory Kit For 3 Series Torches

Suitable for CK 3 Series Torches: CK17, CK18, CK26, CK150, CK210, CK300, CK510, CKC150, CKM210, CKM350, CWH350, CWHTL300, CWM350, FL150, FL250, TL18, TL26, TL210, TL300. The Accessory Kit Contains The Following: Part # Description Quantity 300L (57Y02) Long Backup  1 300S (57Y04) Short Backup 1 3C116 (10N23) 1.6mm (1/16") Collet 1 3C332 (10N24) 2.4mm (3/32") Collet 1 3C418 (10N25) 3.2mm (1/8") Collet 1 3CB116 (10N31) 1.6mm (1/16") Collet Body 1 3CB332 (10N32) 2.4mm (3/32") Collet Body 1 3CB418 (10N28) 3.2mm (1/8") Collet Body 1 3A5 (10N49) 8.0mm (5/16") #5 Alumina Cup 1 3A6 (10N48) 9.6mm (3/8") #6 Alumina Cup 1 3A8 (10N46) 12.8mm (1/2") #8 Alumina Cup 1 T1167GC2 1.6mm (1/16") x 175mm (7") 2% Ceriated Tungsten 1 T3327GC2 2.4mm (3/32") x 175mm (7") 2% Ceriated Tungsten 1 T187GC2 3.2mm (1/8") x 175mm (7") 2% Ceriated Tungsten 1

CK Worldwide CK Series 3 Backcap Long 57Y02 Fits WP17,18 & 26 Torches

CK Series 3 Back Cap Long 57Y02 – Fits WP17, WP18 & WP26 Torches The CK Series 3 Long Back Cap (57Y02) is a genuine CK Worldwide replacement part designed for use with WP17, WP18, and WP26 TIG torch series. This long back cap securely holds the tungsten electrode in place, maintaining proper alignment and electrical contact during welding. Manufactured from high-quality, heat-resistant materials, it ensures long service life even under demanding conditions. The long design allows for the use of extended tungsten electrodes, providing greater reach and visibility for precision welding applications. Key Features: Genuine CK Worldwide TIG torch component Long back cap (57Y02) – for use with extended tungsten electrodes Ensures secure electrode hold and stable arc performance Heat-resistant construction for long life and durability Compatible with WP17, WP18 & WP26 TIG torches Interchangeable with standard 3 Series TIG torch consumables Typical Applications: TIG Welding | Stainless Steel | Aluminium | Mild Steel | Fabrication | Maintenance Brand: CK Worldwide Part Number: 57Y02 Series: 3 Series Fits: WP17, WP18, WP26 Torches

CK Worldwide CK TIG Torch Gas Lens Body Standard 3 Series CK17,18 & 26

CK Standard 3 Series TIG Torch Gas Lens Body – Fits CK17, CK18 & CK26 The CK Standard 3 Series TIG Torch Gas Lens Body delivers superior shielding gas coverage and improved weld quality in all TIG applications. Precision-engineered by CK Worldwide, this gas lens body replaces the standard collet body to provide a more laminar gas flow, reducing turbulence and improving protection of the weld pool. Constructed from high-conductivity copper alloy, it ensures excellent current transfer and heat dissipation, helping extend tungsten and consumable life. Compatible with CK17, CK18, and CK26 torch series, this gas lens body is ideal for precision welding on stainless steel, aluminium, and other sensitive materials. Key Features: Genuine CK Worldwide replacement part Provides improved shielding gas coverage for cleaner welds High-quality copper alloy for superior conductivity and durability Enhances tungsten and consumable life Compatible with CK17, CK18 & CK26 TIG torches Works with all CK 3 Series gas lens collets and cups Typical Applications: TIG Welding | Stainless Steel | Aluminium | Titanium | Precision Fabrication   Brand: CK Worldwide Series: 3 Series Fits: CK17, CK18, CK26 Torches Sold Singularly - If packs Are Required Please Order In Quantities Of 10

CK Worldwide CK Heatshield - Standard CK3

CK Heatshield for CK3 Series torches is now available through Tec Products.

CK Worldwide CK Standard Split Collet CK 2 Series - Fits WP9 & 20 Torches

CK Standard Split Collet 2 Series – Fits WP9 & WP20 Torches The CK Standard Split Collet 2 Series is a high-quality, precision-engineered TIG consumable from CK Worldwide, designed to provide a secure grip and consistent electrical contact with the tungsten electrode. Its split design ensures even clamping pressure and reliable current transfer, resulting in a stable arc and improved weld quality. Manufactured from premium copper alloy for excellent conductivity and durability, this collet is compatible with all WP9 and WP20 torch series, as well as equivalent 2 Series TIG torches. Ideal for professional TIG welders requiring dependable performance and long service life. Key Features: Genuine CK Worldwide replacement collet Standard split design for secure tungsten clamping Ensures consistent current transfer and arc stability Precision-machined copper alloy for durability and conductivity Compatible with WP9 & WP20 TIG torches Works with all CK 2 Series collet bodies and cups Typical Applications: TIG Welding | Stainless Steel | Mild Steel | Aluminium | Titanium | Precision Fabrication   Brand: CK Worldwide Series: 2 Series Fits: WP9, WP20 Torches Fits All Standard WP9 & 20 TIG Torches Aswell As CK Branded Ones 0.5MM - 13N20 1.0MM - 13N21 1.6MM - 13N22 2.4MM - 13N23 3.2MM - 13N24  Sold Singularly - If Pack Sizes Are Wanted Please Order In Quantities Of 5

CK Worldwide CK18 350A Watercooled TIG Torch With Superflex Cables

CK18 Water Cooled 350amp ACHF or DCSP @ 100% 3 Series Head Accessories Largest water jacket available: 300% more cooling Largest metal mass insert More mass in the head of the torch equals more efficient heat dissipation Constructed with a hardened brass alloy head to reduce thread damage Fail-safe hose connections eliminates wire ties for a positive seal   Fitted with CK's Superflex Cable Lightest most flexible cable assemblies available Available for all gas-cooled or water-cooled torches Lightweight silicon rubber hose with nylon overbraid protection to resist abrasion Replaces heavy, stiff cables increasing range of motion Stays flexible even in the coldest environments Great for intricate precise welding applications ***Please note all CK torches come with a 3/8" BSP Female Nut Connection only, you WILL need a power adaptor for all the torch range and a button switch and switch plug to suit your specific machine should you require the use of a switch 

CK Worldwide CK Trimline TL300 350A Watercooled TIG Torch With Superflex Cables

Water cooled 350amp ACHF or DCSP at 100% Duty Cycle Takes 3 Series Head Consumables Trim-Line Water cooled torches significantly reduce the size and weight of your torch while maintaining similar amperage capacity Engineered for high amperage, water-cooled applications Trim-Line™ series TIG torches take advantage of a stream-lined torch body and handle design for a more comfortable fit in you hand, allowing you to do more welding per hour with less stress and strain.  Trim-Line™ torches can be configured for nearly any job, The CK-TL300 Series are compatible with all 17, 18, 26, CS300, & CS310 Parts. ***Please note all CK torches come with a 3/8" BSP Female Nut Connection only, you WILL need a power adaptor for all the torch range and a button switch and switch plug to suit your specific machine should you require the use of a switch 

CK Worldwide CK 2 Series CK9 / 20 Short Backcap With O-Ring

CK 200S Short back cap with O ring for 2 series Tig torch such as CK 9, 20 and 230 weldcraft part number 41V33.

CK Worldwide CK 9 & 20 Medium Backcap With O-Ring

CK 2 Series - CK9 & 20 Medium Length Backcap Common Part Code - 41V35 The CK 9 / 20 Medium Backcap With O-Ring is a high-quality replacement component designed for TIG welding torches, ensuring a secure and reliable seal while protecting the tungsten electrode. Manufactured to precise industry standards, this backcap provides durability, heat resistance, and a tight fit for optimal performance. Key Features: Durable Construction – Made from high-quality heat-resistant materials for long-lasting performance in demanding welding applications. Secure O-Ring Seal – Includes a precision-fit O-ring to ensure an airtight seal, preventing gas leaks and enhancing torch efficiency. Medium-Length Design – Offers a balance between accessibility and control, making it suitable for a wide range of TIG welding applications. Compatible with CK 9 & CK 20 Series Torches – Designed to fit CK Worldwide 9 and 20 series TIG torches, ensuring a seamless replacement. Easy Installation – Simply screws into place for quick and hassle-free replacement, minimizing downtime. Ideal For: Professional welders and fabricators Industrial and precision TIG welding applications Automotive and aerospace welding DIY welding enthusiasts Why Choose CK Worldwide?   CK Worldwide is a trusted name in premium TIG welding equipment, known for innovation, quality, and precision. The CK 9 / 20 Medium Backcap With O-Ring ensures a reliable, leak-free fit, helping you achieve consistent and high-quality welds every time.

CK Worldwide CK Flexloc FL150 TIG Torch With Swivel Head & Superflex Cable

The Flex-Loc™ series torch is a variable angle torch that locks into any position within a 360 degree rotation. Interchangeable heads allow different size tungsten and head sizes to be quickly and efficiently changed. The patented Flex-Loc™ TIG Torch is available in water cooled and gas cooled models. Great for applications requiring a unique angle yet allowing the user a rigid torch. Ergonomically designed to help eliminate fatigue.Applications: Cup walking on pipe root welds, welds that require a mirror to access weldment, welds requiring different tungsten sizes.   Fitted with CK's Superflex Cable Lightest most flexible cable assemblies available Available for all gas-cooled or water-cooled torches Lightweight silicon rubber hose with nylon overbraid protection to resist abrasion Replaces heavy, stiff cables increasing range of motion Stays flexible even in the coldest environments Great for intricate precise welding applications ***Please note all CK torches come with a 3/8" BSP Female Nut Connection only, you WILL need a power adaptor for all the torch range and a button switch and switch plug to suit your specific machine should you require the use of a switch 

CK Worldwide CK17 TIG Torch With Superflex Cable

Introducing the CK17 Gas-Cooled 150amp TIG Torch: Your Ultimate Welding Companion The CK17 Gas-Cooled TIG Torch is a top-tier welding tool designed to meet your welding needs with precision and efficiency. Whether you're working with ACHF or DCSP at 100%, this torch delivers outstanding performance and versatility. Plus, it seamlessly accommodates all 3 Series torch head accessories (WP17, WP18, WP26), making it a must-have for any professional welder.   Why choose the CK17 TIG Torch? Worldwide Popularity: Renowned as the most favoured TIG torch globally, the CK17 is trusted by welders everywhere. Enhanced Heat Dissipation: The torch head is engineered with added mass, ensuring superior heat dissipation. This design enables you to work longer without overheating. Durable Brass Alloy Head: Crafted from a rugged brass alloy, the torch head minimises thread damage and resists galling and seizing compared to copper heads. Maximum Cooling: The torch features the largest metal head insert, guaranteeing maximum cooling and prolonging its lifespan. Heavy-Duty Construction: Built for endurance, this torch allows for extended welding sessions at 150 amps, making it perfect for demanding projects.   Experience Unparalleled Flexibility with CK's Superflex Cable: The CK17 TIG Torch comes fitted with CK's Superflex Cable, offering unparalleled benefits: Lightweight and Flexible: It boasts the lightest and most flexible cable assemblies available in the market. Say goodbye to cumbersome cables and enjoy increased manoeuvrability. Versatile Compatibility: Designed to fit both gas-cooled and water-cooled torches, this cable is a versatile solution for your welding setup. Durable Construction: The cable features a lightweight silicon rubber hose with nylon over braid protection, ensuring resistance to abrasion and longevity. Improved Range of Motion: Replacing heavy, stiff cables, the Superflex Cable lets you work comfortably and with precision, even in intricate welding applications. Cold Weather Resilience: No matter the temperature, this cable remains flexible, ensuring reliable performance even in the coldest environments.   Available in two length options, 4 meters (12 feet) and 8 meters (25 feet), both configurations come standard with a universal 3/8" connection for hassle-free setup. Elevate your welding experience with the CK17 Gas-Cooled TIG Torch and Superflex Cable – the perfect combination for achieving exceptional welding results.   ***Please note all CK torches come with a 3/8" BSP Female Nut Connection only, you WILL need a power adaptor for all the torch range and a button switch and switch plug to suit your specific machine should you require the use of a switch    Please note: There is no warranty on TIG welding torches unless there is a manufacturing defect.

CK Worldwide CK Green LAaYZR (Chartreuse) Tungsten Electrodes Pack of 10

LaYZr (CHARTREUSE) EWG Principal Oxides: 1.5% Lanthanum, 0.08% Zirconium, 0.08% Yttrium Oxides This non-radioactive tungsten is best for automated or robotic uses in AC or DC, it can tolerate a low voltage and uses inverter or transformer based constant current power sources.  These tungsten's are good for low alloyed steels, non-corroding steels and alloys of aluminium, magnesium, titanium, nickel and copper. The geometry of the tips are very stable and they run cooler than the 2% Thoriated and have a longer lifespan. Use these in the low to medium amp range.  This pack of ten is the best way always to have tungsten's on hand. 

CK Worldwide CK Blue 2% Lanthanated Tungsten Electrode Pack Of 10

CK Blue 2% LANTHANATED (BLUE) EWLa-2/WL20 Principal Oxide: 1.8-2.2% Lanthanum Oxide NON-RADIOACTIVE. Best general-purpose electrode for both Alternating Current (A/C) or Direct Current (D/C) using inverter or transformer based constant current power sources. Good for low-alloyed steels, non-corroding steels, aluminium alloys, magnesium alloys, titanium alloys, nickel alloys, copper alloys. Good arc starts and stability, medium to high amperage range, low erosion rate.

CK Worldwide CK Trimline TL26 3 Series TIG Torch With Superflex Cable

CK Trimline TL26 TIG Torch With Superflex Cable The CK Trim-Line™ TL26 Tig torch offers the same current ratings as the standard 26 models they replace while providing a smaller, lighter design for greater comfort and ease of use. Engineered for high amperage, air-cooled applications Trim-Line™ series TIG torches take advantage of a stream-lined torch body and handle design for a more comfortable fit in you hand, allowing you to do more welding per hour with less stress and strain. The gas cooled TL26 is rated for 200A at 100% duty cycle on AC. Fitted with CK's Superflex Cable Lightest most flexible cable assemblies available Available for all gas-cooled or water-cooled torches Lightweight silicon rubber hose with nylon overbraid protection to resist abrasion Replaces heavy, stiff cables increasing range of motion Stays flexible even in the coldest environments Great for intricate precise welding applications ***Please note all CK torches come with a 3/8" BSP Female Nut Connection only, you WILL need a power adaptor for all the torch range and a button switch and switch plug to suit your specific machine should you require the use of a switch 

CK Worldwide CK9 Rigid Replacement Torch Head

Replacement Rigid CK9 Torch Body For CK & Generic Gas Cooled Torches 

CK Worldwide CK 8Mtr Torch Switch & Power Cable - 2 Wire 95080

Packed Dimensions: Height 31cm  x  Width 4.00cm  x  Depth 23cm Gross Weight: 0.500kg each

CK Worldwide CK17FX Flexible Replacement Torch Body - 150A

Replacement Flexible torch body for CK 17FX Torch 150A Rated Gross Weight: 0.350kg each

CK Worldwide CK 20FX Water Cooled Replacable Torch Body

Replacement torch body for CK 20FX Torches Packed Dimensions: Height 27cm  x  Width 8.00cm  x  Depth 2.50cm Gross Weight: 0.100kg each

CK Worldwide CK 9FX Flexible Replacement Torch Body

Replacement torch body for CK 9FX / WP9 TIG Torches  Gross weight: 0.400kg each

CK Worldwide CK 1.5% Lantanated Gold Tungsten Pack Of 10

CK Worldwide 1.5% LANTHANATED (GOLD) EWLa-1.5/WU5 Principal Oxide: 1.3-1.7% Lanthanum Oxide Lanthanated: Best for use in Direct Current (D/C) as an alternative to 2% Thoriated using inverter or transformer based constant current power sources. Best for non corroding steels, titanium alloys, nickel alloys, copper alloys. Best D/C arc starts and stability, low erosion rate, wide amperage range, no splitting.    In sizes: 0.5mmx175mm to 4.0x 175mm Comes in pack of 10. 

CK Worldwide CK 0.8% Zirconiated White Tungsten Pack Of 10

0.8% ZIRCONIATED (WHITE) EWZr-8/WZ8 Principal Oxide: 0.7-0.9% Zirconium Oxide 0.8% Zirconiated (White). Best for use in Alternating Current (A/C) for aluminium alloys and magnesium alloys using inverter or transformer based constant current power sources. Balls well, handles higher amperage than pure tungsten with less pitting, better arc starts and arc stability than pure tungsten.

CK Worldwide CK 2% Thoriated Red Tungsten Electrode Pack Of 10

CK 2% THORIATED (RED) EWTh-2/WT20 Principal Oxide: 1.7-2.2% Thorium Oxide Best for use in Direct Current (D/C) applications using transformer based constant current power sources. Best for use on non corroding steels, titanium alloys, nickel alloys, copper alloys. Good D/C arc starts and stability, medium erosion rate, medium amperage range, medium tendency to spit.

CK Worldwide CK Gas Lens 2 Series For CK9 & CK20 (WP9 & WP20)

CK 2 Series Standard Gas Lens CK9 (WP9)  These gas lenses are for improving the gas coverage over standard collet bodies, these are ideal for allowing a longer tungsten to stick out, these fit all standard WP9 and WP20 torches. These gas lenses range in size from 0.5mm up to 3.2mm. These are used in conjunction with gas cups such as ceramic or glass cups. The glass lenses allow you to attach a wider range of cups to your welding arsenal. If you regularly weld stainless steel or titanium materials which require a wider spread of gas coverage, gas lenses are ideal as they provide a consistent non-turbulent gas flow.  Please note- if you require packs please order in quantities of 10.    Why are gas lenses better than standard collet bodies? Collet bodies are standard consumables used when TIG welding, the purpose of these parts are to hold electrodes in place and also allow the gas shield to surround the weld pool. The plume of gas over the weld pool comes through the special holes at the end of the collet body, the gas is filtered out but it does not have any specific direction just out of the torch- the shape of the cup aims the gas over the weld pool but it can result in uneven pockets in the gas as it is pushed from the torch. A gas lens can be used as a replacement to the collet body (not the collet though), it also holds the collet in place and evenly distributes the gas over the weld area. Gas lenses have a mesh screen used as a diffuser which distributes the gas in a laminar pattern over the weld area which allows for less turbulence and a better overall weld. A gas lens allows for increased gas coverage and means the tungsten can stick out further. A further benefit of using a gas lens is that we can save gas usage because it is more efficient and more effective. For example a regular collet body with a number 8 cup will use around 10 litres of gas per minute flow rate whereas the gas lens with the same number 8 cup would have a flow rate of roughly 5 litres per minute. This makes it a more efficient and cheaper method of gas shielding.  You may also weld at different angles as the flow is better, wider and more consistent. The inner mesh of the lens is also replaceable in case of contamination.