Lyndex-Nikken NCAT50-SK6C-165 Collet Chucks; Collet System: Slim Chuck ; Collet Series: SK6 ; Taper Size: NCAT50 ; Projection (Decimal Inch): 6.5000in ; Minimum Collet Capacity (Decimal Inch): 0.0280in ; Maximum Collet Capacity (Decimal Inch): 0.2500