Drill Chuck 0.6-6 Mm B10 Chuck Adapter Milling Tool Set Key Type Drill Chuck
0.6-6mm B10:0.6-6mm denotes that clamp the drill between 0.6 and 6mm, andB10 represents the hole behind the chuck is about 16MM taper. By using specialized anti-thrust bearing to convert key-applied torque into superior gripping.