This Makita Impact Black Sleeve Chuck features a 1/4" hex shank with a Torsion zone, designed for use with impact drivers. The black coating prevents rusting and provides high durability, offering a longer life than standard bits. It is a magnetic sleeve chuck that works well with 25mm and 50mm impact black screw bits. The black coating also prevents rusting and corrosion. This chuck is suitable for applications such as screwdriving, joinery, assembly, and fixings. It has a length of 60mm and a 1/4" hex shank.