Jacobs 6287 33BA 1/2"x20 Plain Bearing Chuck
The Jacobs 6287 is designed for medium or heavy-duty portable, bench or floor mounted power tools. Industrial quality with fully hardened and ground working components which offers high accuracy, gripping power, and durability. Each chuck has centre ground jaws for absolute straightness and alignment, through-hardened sleeve teeth plus hardened nose and keyholes to provide wear resistance. The one-piece sleeve eliminates crack between the driving teeth.