Lyndex-Nikken NCAT40-SK16C-12 Collet Chucks; Collet System: Slim Chuck ; Collet Series: SK16 ; Taper Size: NCAT40 ; Projection (Decimal Inch): 4.7200in ; Minimum Collet Capacity (Decimal Inch): 0.1080in ; Maximum Collet Capacity (Decimal Inch): 0.630