The 12-Piece Precision R-8 Collet Set from Busy Bee Tools is designed for lathes and mills with an R-8 spindle taper. Crafted from high-grade collet steel, these collets are precision-ground to ensure accuracy and durability. Ideal for machining professionals and hobbyists, this set provides a secure grip on cutting tools, enhancing precision and performance. Features: Compatible with any lathe or milling machine featuring an R-8 spindle taper High-quality collet steel construction for durability and longevity Precision-ground for exceptional accuracy and minimal runout Provides a firm grip on tools, reducing slippage during machining Designed for high-performance applications in metalworking and machining Specifications: Includes 12 collets ranging from 1/8" to 3/4" in 1/16" increments, plus a 7/8" collet Precision-ground to exacting tolerances for optimal performance Uses a 7/16"-20 drawbar Comes With: 12-piece collet set in a range of sizes Secure storage case for organization and protection