The JET CCS-1 Mill Chuck & Collet Set is a premium 17-piece milling accessory kit engineered for precision and versatility in milling, drilling, reaming, and boring operations. Built around an R-8 shank taper, this set delivers an exceptional T.I.R. of 0.0008" at 2-3/8", making it a reliable choice for machinists who demand tight tolerances and consistent performance from their milling machine setup. Key Features Includes 15 precision spring collets in 1/16" increments from 1/8" to 1" Spring collets replace 15 individual adapters, simplifying your tooling setup T.I.R. at 2-3/8" is 0.0008" for high-accuracy machining operations R-8 shank taper for broad compatibility with standard milling machines Quickly changes from one shank size to another without loosening the draw bar Complete with spanner wrenches for convenient on-the-spot adjustments Organized and protected in a wooden storage case for long-term durability Specifications MPN: JT9-466001 Brand: JET Shank Taper: R-8 T.I.R. at 2-3/8": 0.0008" Collet Range: 1/8"-1" in 1/16" increments Number of Collets: 15 Overall Dimensions (L x W x H): 9" x 6" x 0.38" Country of Origin: Taiwan Approved Applications Milling operations Drilling operations Reaming operations Boring operations What's Included 15 precision spring collets (1/8"-1" in 1/16" increments) Spanner wrenches Wooden storage case