ITEM NAME:10PCS TIG Collets 2.4mm For WP 9 18 26 QQ150 TIG Welding Torch ACCESSORIES Description: Collet diameter: 2.4mm Use for clamping tungsten electrode Hold the tungsten more securely Suit for QQ150 TIG welding WP-9 18 26 series torches. Made of standard grade copper or tellurium copper Specification: Material: Brass Color: Copper Length: 36mm/1.41inch. Package Includes: 10 Pieces Brass TIG Welding Torch Set SKU: DMO0012521973016779.Suit for QQ150 TIG welding WP-9 18 26 series torches. 10 Pieces Brass TIG Welding Torch Set. Use for clamping tungsten electrode. SKU: DMO0012521973016779.