10N21 - 10N21 TIG Collet .020" for 17/18/26 Torches (5-Pack)

Precision 10N21 TIG Collets for Fine Welding Applications

The Diamond Ground 10N21 Collet is a critical consumable for TIG welders performing delicate, high-precision work. Designed specifically to hold .020-inch (0.5mm) tungsten electrodes, this collet ensures that the electrode remains firmly centered and electrically connected within the torch assembly. When working with such fine tungsten, the quality of the collet is paramount; a poor fit can lead to arc wandering, overheating, or the tungsten slipping back into the cup during pressure. This 5-pack ensures that industrial operators have sufficient stock to maintain their equipment without downtime.

These collets are manufactured to strict tolerances, compatible with the industry-standard 17, 18, and 26 series TIG torches. Whether you are using an air-cooled WP-17 or WP-26, or a water-cooled WP-18, the 10N21 fits seamlessly into the standard collet body setup. The copper alloy construction provides excellent thermal and electrical conductivity, transferring current efficiently from the power cable to the tungsten. This is particularly important in low-amperage applications where stability is key to achieving a clean weld on thin-gauge materials.

Regular replacement of collets is a best practice in TIG welding maintenance. Over time, heat cycles can cause collets to twist or deform, reducing their ability to grip the tungsten effectively. By choosing the Diamond Ground 10N21, you are investing in a product known for consistency. This pack of five allows for immediate replacement when wear is detected, ensuring that your welding operations continue to run smoothly and efficiently. Ideal for aerospace, electronics, and medical device fabrication where micro-TIG welding is common.

Key Technical Benefits

Using the correct collet size is non-negotiable in GTAW (Gas Tungsten Arc Welding). The 10N21 is engineered to match the diameter of .020" electrodes exactly. Attempting to use a larger collet will result in zero grip, while a damaged collet can crush the brittle tungsten. These collets feature a split design that compresses uniformly when the back cap is tightened, providing a secure hold without damaging the electrode finish.