Lyndex-Nikken SK6-SET-16-MM Collet Sets; Collet System: Slim Chuck ; Collet Series: SK6 ; Minimum Collet Capacity (mm): 0.80 ; Maximum Collet Capacity (mm): 6.00 ; Size Increments (mm): 0.25 ; Includes: Includes: SK6-0.8,1,1.25,1.5,1.75,2,2.25,2.5,2.