Jacobs Drill Chuck,keyed,steel,3/8 In,3/8-24 NGN0_S5FPJ46

Jaws center ground for absolute straightness and alignment. One piece sleeve eliminates crack between driving teeth often found in other designs. Through hardened sleeve teeth, plus hardened nose and keyholes provide outstanding wear resistance. Each chuck 100 percent inspected for performance and precision. TIR 0.004-inch maximum at half capacity. Models 0 and 1A are smooth sleeve. All Model 33 plain bearing chucks are hammer capable. 0.375-inches maximum and 0.040-inches minimum capacity.