15 PC 5C Collet Set 1/8" - 1" by 16ths Milling Tool 0.0006" TIR 15 Piece 5C Collet Set ; .0006" TIR ; Hardened and ground throughout Sizes: 1/8 to 1" by 16ths: 1/8" 3/16" 1/4" 5/16" 3/8" 7/16" 1/2" 9/16" 5/8" 11/16" 3/4" 13/16" 7/8" 15/16" 1" ; Precision ground to close tolerance .0006" TIR Outside Thread: 1-1/4"-20 ; Inside Thread: 1"-24 ; Quantity: 1 set (15 pieces per order);Shipping weight: 9 LBS ;Made of highest grade steel available