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MK Products Collets

  • Extended collet 5003 series specifically designed for MK Products welding systems, accommodating 0.800 inch outer diameter wire. Features precision engineering for optimal wire grip and alignment, extended design for improved support, and durable construction for industrial use. This high-quality component ensures consistent welding performance and maintains weld joint alignment. The 5003 series extended collet is an essential part for professional welders using compatible MK Products systems, providing rel

    MK Products Collet 5003 Extended 0.800 IN OD - 624-0310-0.800

    $519.15
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  • Extended collet 5003 series specifically designed for MK Products welding systems, accommodating 1 inch outer diameter wire. Features precision engineering for optimal wire grip and alignment, extended design for improved support, and durable construction for industrial use. This high-quality component ensures consistent welding performance and maintains weld joint alignment. The 5003 series extended collet is an essential part for professional welders using compatible MK Products systems, providing reliabl

    MK Products Collet 5003 Extended 1 IN OD - 624-0310-1.000

    $519.15
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  • Extended collet 5003 series specifically designed for MK Products welding systems, accommodating 0.955 inch outer diameter wire. Features precision engineering for optimal wire grip and alignment, extended design for improved support, and durable construction for industrial use. This high-quality component ensures consistent welding performance and maintains weld joint alignment. The 5003 series extended collet is an essential part for professional welders using compatible MK Products systems, providing rel

    MK Products Collet 5003 Extended 0.955 IN OD - 624-0310-0.955

    $519.15
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  • Extended collet 5003 series specifically designed for MK Products welding systems, accommodating 0.910 inch outer diameter wire. Features precision engineering for optimal wire grip and alignment, extended design for improved support, and durable construction for industrial use. This high-quality component ensures consistent welding performance and maintains weld joint alignment. The 5003 series extended collet is an essential part for professional welders using compatible MK Products systems, providing rel

    MK Products Collet 5003 Extended 0.910 IN OD - 624-0310-0.910

    $519.15
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  • MK Products COL 5003 EXT 1-7/8 IN OD - 624-0310-1.875

    MK Products COL 5003 EXT 1-7/8 IN OD - 624-0310-1.875

    $519.15
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  • Extended collet 5003 series custom-designed for MK Products welding systems, optimized for 7/8 inch outer diameter wire. Incorporates cutting-edge engineering for superior wire grip and alignment, extended profile for improved support, and robust construction for industrial-grade durability. This premium component guarantees consistent, high-quality welding performance and maintains precise weld joint alignment. The 5003 series extended collet is a crucial tool for professional welders employing compatible

    MK Products Collet 5003 Extended 7/8 IN OD - 624-0310-0.875

    $519.15
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  • Extended collet 5003 series specifically designed for MK Products welding systems, accommodating 0.830 inch outer diameter wire. Features precision engineering for optimal wire grip and alignment, extended design for improved support, and durable construction for industrial use. This high-quality component ensures consistent welding performance and maintains weld joint alignment. The 5003 series extended collet is an essential part for professional welders using compatible MK Products systems, providing rel

    MK Products Collet 5003 Extended 0.830 IN OD - 624-0310-0.830

    $519.15
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  • Extended collet 5003 series specifically designed for MK Products welding systems, accommodating 3/4 inch outer diameter wire. Features precision engineering for optimal wire grip and alignment, extended design for improved support, and durable construction for industrial use. This high-quality component ensures consistent welding performance and maintains weld joint alignment. The 5003 series extended collet is an essential part for professional welders using compatible MK Products systems, providing relia

    MK Products Collet 5003 Extended 3/4 IN OD - 624-0310-0.750

    $519.15
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  • Extended collet 5003 series custom-designed for MK Products welding systems, optimized for 5/8 inch outer diameter wire. Incorporates cutting-edge engineering for superior wire grip and alignment, extended profile for improved support, and robust construction for industrial-grade durability. This premium component guarantees consistent, high-quality welding performance and maintains precise weld joint alignment. The 5003 series extended collet is a crucial tool for professional welders employing compatible

    MK Products Collet 5003 Extended 5/8 IN OD - 624-0310-0.625

    $519.15
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  • Extended blank collet 5003 series designed for customization in MK Products welding systems. Features unfinished design for machining to specific wire diameters, extended form for improved support, and durable construction for industrial use. This versatile component allows for tailored welding performance and maintains weld joint alignment when properly customized. The 5003 series extended blank collet is an essential tool for professional welders using compatible MK Products systems, providing adaptabilit

    MK Products Collet 5003 Extended Blank - 624-0163

    $519.15
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  • MK Products 5003 series flush collet designed for 1.669-inch outer diameter welding wire. Features precision machining, flush design for improved wire feeding, and durable construction for industrial use. This collet ensures accurate wire alignment and stable electrical contact, enhancing overall welding performance in compatible MK Products welding systems.

    MK Products Collet 5003 Flush 1.669 IN OD - 623-0190

    $574.25
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  • MK Products 5003 series flush collet designed for 2.374-inch outer diameter welding wire. Features precision machining, flush design for improved wire feeding, and durable construction for industrial use. This collet ensures accurate wire alignment and stable electrical contact, enhancing overall welding performance in compatible MK Products welding systems.

    MK Products Collet 5003 Flush 2.374 IN OD - 623-0191

    $574.25
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  • MK Products COL 5003 SFER 2-1/2 IN OD - 626-0505

    MK Products COL 5003 SFER 2-1/2 IN OD - 626-0505

    $798.60
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  • MK Products COL 5003 SFER 1&1-1/2 IN OD - 626-0503

    MK Products COL 5003 SFER 1&1-1/2 IN OD - 626-0503

    $798.60
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  • MK Products COL 5003 SFER 1/2 & 3/4 IN OD - 626-0501

    MK Products COL 5003 SFER 1/2 & 3/4 IN OD - 626-0501

    $798.60
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  • MK Products COL SFER 5002 1/2 IN OD - 626-0250

    MK Products COL SFER 5002 1/2 IN OD - 626-0250

    $798.60
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  • MK Products 5006 series flush blank collet designed for customization. Features unfinished design for machining to specific wire diameters, flush form for improved wire feeding once customized, and durable construction for industrial use. This versatile component allows for tailored welding performance in compatible MK Products welding systems.

    MK Products Collet 5006 Flush Blank - 623-5006

    $900.03
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  • MK Products 5006 series flush collet designed for 2.500-inch (2-1/2 inch) outer diameter welding wire. Features precision machining, flush design for improved wire feeding, and durable construction for industrial use. This collet ensures accurate wire alignment and stable electrical contact, enhancing overall welding performance in compatible MK Products welding systems.

    MK Products Collet 5006 Flush 2-1/2 IN OD - 623-5006-2.500

    $916.69
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  • MK Products 5006 series flush collet designed for 5-inch nominal pipe size welding wire. Features precision machining, flush design for improved wire feeding, and durable construction for industrial use. This collet ensures accurate wire alignment and stable electrical contact, enhancing overall welding performance in compatible MK Products welding systems.

    MK Products Collet 5006 Flush 5 IN NP - 623-5006-5NP

    $916.69
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  • MK Products 5006 series flush collet designed for 78.8 mm outer diameter welding wire. Features precision machining, flush design for improved wire feeding, and durable construction for industrial use. This collet ensures accurate wire alignment and stable electrical contact, enhancing overall welding performance in compatible MK Products welding systems.

    MK Products Collet 5006 Flush 78.8MM OD - 623-5006-78.8MM

    $916.69
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  • MK Products 5006 series flush collet designed for 72.0 mm outer diameter welding wire. Features precision machining, flush design for improved wire feeding, and durable construction for industrial use. This collet ensures accurate wire alignment and stable electrical contact, enhancing overall welding performance in compatible MK Products welding systems.

    MK Products Collet 5006 Flush 72.0MM OD - 623-5006-72.0MM

    $916.69
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  • MK Products 5006 series flush collet designed for 80.0 mm outer diameter welding wire. Features precision machining, flush design for improved wire feeding, and durable construction for industrial use. This collet ensures accurate wire alignment and stable electrical contact, enhancing overall welding performance in compatible MK Products welding systems.

    MK Products Collet 5006 Flush 80.0MM OD - 623-5006-80.0MM

    $916.69
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  • MK Products 5006 series flush collet designed for 85.0 mm outer diameter welding wire. Features precision machining, flush design for improved wire feeding, and durable construction for industrial use. This collet ensures accurate wire alignment and stable electrical contact, enhancing overall welding performance in compatible MK Products welding systems.

    MK Products Collet 5006 Flush 85.0MM OD - 623-5006-85.0MM

    $916.69
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  • MK Products 5006 series flush collet designed for 4.000-inch (4 inch) outer diameter welding wire. Features precision machining, flush design for improved wire feeding, and durable construction for industrial use. This collet ensures accurate wire alignment and stable electrical contact, enhancing overall welding performance in compatible MK Products welding systems.

    MK Products Collet 5006 Flush 4 IN OD - 623-5006-4.000

    $916.69
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  • MK Products 5006 series flush collet designed for 60.0 mm outer diameter welding wire. Features precision machining, flush design for improved wire feeding, and durable construction for industrial use. This collet ensures accurate wire alignment and stable electrical contact, enhancing overall welding performance in compatible MK Products welding systems.

    MK Products Collet 5006 Flush 60.0MM OD - 623-5006-60.0MM

    $916.69
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  • MK Products 5006 series flush collet designed for 6.000-inch (6 inch) outer diameter welding wire. Features precision machining, flush design for improved wire feeding, and durable construction for industrial use. This collet ensures accurate wire alignment and stable electrical contact, enhancing overall welding performance in compatible MK Products welding systems.

    MK Products Collet 5006 Flush 6 IN OD - 623-5006-6.000

    $916.69
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  • MK Products 5006 series flush collet designed for 5-1/2 inch nominal pipe size welding wire. Features precision machining, flush design for improved wire feeding, and durable construction for industrial use. This collet ensures accurate wire alignment and stable electrical contact, enhancing overall welding performance in compatible MK Products welding systems.

    MK Products Collet 5006 Flush 5-1/2 IN NP - 623-5006-5-1/2NP

    $916.69
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  • MK Products 5006 series flush collet designed for 3-1/2 inch nominal pipe size welding wire. Features precision machining, flush design for improved wire feeding, and durable construction for industrial use. This collet ensures accurate wire alignment and stable electrical contact, enhancing overall welding performance in compatible MK Products welding systems.

    MK Products Collet 5006 Flush 3-1/2 IN NP - 623-5006-3-1/2NP

    $916.69
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  • MK Products 5006 series flush collet designed for 5.000-inch (5 inch) outer diameter welding wire. Features precision machining, flush design for improved wire feeding, and durable construction for industrial use. This collet ensures accurate wire alignment and stable electrical contact, enhancing overall welding performance in compatible MK Products welding systems.

    MK Products Collet 5006 Flush 5 IN OD - 623-5006-5.000

    $916.69
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  • MK Products 5006 series flush collet designed for 4-inch nominal pipe size welding wire. Features precision machining, flush design for improved wire feeding, and durable construction for industrial use. This collet ensures accurate wire alignment and stable electrical contact, enhancing overall welding performance in compatible MK Products welding systems.

    MK Products Collet 5006 Flush 4 IN NP - 623-5006-4NP

    $916.69
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  • MK Products 5006 series flush collet designed for 4.500-inch (4-1/2 inch) outer diameter welding wire. Features precision machining, flush design for improved wire feeding, and durable construction for industrial use. This collet ensures accurate wire alignment and stable electrical contact, enhancing overall welding performance in compatible MK Products welding systems.

    MK Products Collet 5006 Flush 4-1/2 IN OD - 623-5006-4.500

    $916.69
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  • MK Products 5006 series flush collet designed for 3.500-inch (3-1/2 inch) outer diameter welding wire. Features precision machining, flush design for improved wire feeding, and durable construction for industrial use. This collet ensures accurate wire alignment and stable electrical contact, enhancing overall welding performance in compatible MK Products welding systems.

    MK Products Collet 5006 Flush 3-1/2 IN OD - 623-5006-3.500

    $916.69
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  • MK Products 5006 series flush collet designed for 3-inch nominal pipe size welding wire. Features precision machining, flush design for improved wire feeding, and durable construction for industrial use. This collet ensures accurate wire alignment and stable electrical contact, enhancing overall welding performance in compatible MK Products welding systems.

    MK Products Collet 5006 Flush 3 IN NP - 623-5006-3NP

    $916.69
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  • MK Products 5006 series flush collet designed for 3.000-inch (3 inch) outer diameter welding wire. Features precision machining, flush design for improved wire feeding, and durable construction for industrial use. This collet ensures accurate wire alignment and stable electrical contact, enhancing overall welding performance in compatible MK Products welding systems.

    MK Products Collet 5006 Flush 3 IN OD - 623-5006-3.000

    $916.69
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  • MK Products 5006 series flush collet designed for 5.500-inch (5-1/2 inch) outer diameter welding wire. Features precision machining, flush design for improved wire feeding, and durable construction for industrial use. This collet ensures accurate wire alignment and stable electrical contact, enhancing overall welding performance in compatible MK Products welding systems.

    MK Products Collet 5006 Flush 5-1/2 IN OD - 623-5006-5.500

    $916.69
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  • MK Products 5006 series flush collet designed for 2-inch nominal pipe size welding wire. Features precision machining, flush design for improved wire feeding, and durable construction for industrial use. This collet ensures accurate wire alignment and stable electrical contact, enhancing overall welding performance in compatible MK Products welding systems.

    MK Products Collet 5006 Flush 2 IN NP - 623-5006-2NP

    $916.69
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  • MK Products 5006 series flush collet designed for 2-1/2 inch nominal pipe size welding wire. Features precision machining, flush design for improved wire feeding, and durable construction for industrial use. This collet ensures accurate wire alignment and stable electrical contact, enhancing overall welding performance in compatible MK Products welding systems.

    MK Products Collet 5006 Flush 2-1/2 IN NP - 623-5006-2-1/2NP

    $916.69
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  • MK Products 5006 series flush collet designed for 2.000-inch (2 inch) outer diameter welding wire. Features precision machining, flush design for improved wire feeding, and durable construction for industrial use. This collet ensures accurate wire alignment and stable electrical contact, enhancing overall welding performance in compatible MK Products welding systems.

    MK Products Collet 5006 Flush 2 IN OD - 623-5006-2.000

    $916.69
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  • MK Products 5006 series flush collet designed for 114.0 mm outer diameter welding wire. Features precision machining, flush design for improved wire feeding, and durable construction for industrial use. This collet ensures accurate wire alignment and stable electrical contact, enhancing overall welding performance in compatible MK Products welding systems.

    MK Products Collet 5006 Flush 114.0MM OD - 623-5006-114.0MM

    $916.69
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  • MK Products 5006 series flush collet designed for 115.0 mm outer diameter welding wire. Features precision machining, flush design for improved wire feeding, and durable construction for industrial use. This collet ensures accurate wire alignment and stable electrical contact, enhancing overall welding performance in compatible MK Products welding systems.

    MK Products Collet 5006 Flush 115.0MM OD - 623-5006-115.0MM

    $916.69
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  • MK Products 5006 series flush collet designed for 104.0 mm outer diameter welding wire. Features precision machining, flush design for improved wire feeding, and durable construction for industrial use. This collet ensures accurate wire alignment and stable electrical contact, enhancing overall welding performance in compatible MK Products welding systems.

    MK Products Collet 5006 Flush 104.0MM OD - 623-5006-104.0MM

    $916.69
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  • MK Products Collet 4000 Flush/Modified Flush 0.570 IN OD, 623-4000-0.570

    MK Products Collet 4000 Flush/Modified Flush 0.570 IN OD - 623-4000-0.570

    $922.08
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  • MK Products Collet 4000 Flush/Modified Flush 7/16 IN OD, 623-4000-0.438

    MK Products Collet 4000 Flush/Modified Flush 7/16 IN OD - 623-4000-0.438

    $922.08
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  • MK Products Collet 4000 Flush/Modified Flush 6MM OD, 623-4000-6.0MM

    MK Products Collet 4000 Flush/Modified Flush 6MM OD - 623-4000-6.0MM

    $922.08
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  • MK Products Collet 4000 Flush/Modified Flush 4MM OD, 623-4000-4.0MM

    MK Products Collet 4000 Flush/Modified Flush 4MM OD - 623-4000-4.0MM

    $922.08
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  • MK Products Collet 4000 Flush/Modified Flush 12MM OD, 623-4000-12.0MM

    MK Products Collet 4000 Flush/Modified Flush 12MM OD - 623-4000-12.0MM

    $922.08
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  • MK Products Collet 4000 Flush/Modified Flush 10MM OD, 623-4000-10.0MM

    MK Products Collet 4000 Flush/Modified Flush 10MM OD - 623-4000-10.0MM

    $922.08
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  • MK Products Collet 4000 Flush/Modified Flush 5/16 IN OD, 623-4000-0.313

    MK Products Collet 4000 Flush/Modified Flush 5/16 IN OD - 623-4000-0.313

    $922.08
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Frequently Asked Questions

What do MK Products collets do in a MIG gun, and why are there so many sizes?
In MK Products Python and Cobra gun systems, collets grip the contact tip or the gooseneck liner assembly to maintain precise wire alignment and secure electrical contact. Different collet sizes correspond to different wire diameters (0.030 in., 0.035 in., 3/64 in., 1/16 in., etc.) and to gun body styles. Using the wrong size collet allows the wire to wobble at the tip, causing inconsistent arc starts and accelerated tip wear.
How do I identify the right collet part number for my MK Products gun?
Check the existing collet for a stamped part number or measure the wire bore diameter with a caliper. The part number will correspond to the wire diameter (e.g., 0.035 in., 3/64 in., 1/16 in.) and the gun model family (Python or Cobra). Lincoln's MK Products documentation lists the complete collet-to-gun compatibility matrix; when in doubt, provide the gun model number (e.g., K6042-1 for the 15 ft. air-cooled Python) to cross-reference.
How often should collets be inspected or replaced?
Collets are wear items that should be inspected every time you change a liner or contact tip. Look for deformation, cracking, or a loose fit that allows wire play. A worn collet is a common but overlooked cause of erratic wire feeding — it effectively adds play at the critical current-transfer junction where the wire enters the gun. Replace at the first sign of physical distortion or when feeding becomes inconsistent despite a fresh liner and tip.
Can I use collets from other gun brands in MK Products guns?
No — MK Products collets are proprietary to the Python/Cobra gun geometry. Generic or off-brand collets will not seat correctly, which can cause gas leaks, wire misalignment, and heat build-up at the connection point. Stick with genuine MK Products (KP-prefix) parts to maintain the system's designed wire-feed accuracy and current transfer.