17 Pack 5C Collet Set 1/8-1-1/8 inch By 16Ths

Made of high grade tool steel; Hardened and precision ground Outside thread is 1-1/4"-20 Inside thread is 1"-24 Threaded internally and externally guaranteed Tir. 0.0006" High precision 15 piece fractional 5C collet set includes 1/8-1-1/8" x 16th increments