This Mini Electric Drill Chuck 0.3-4mm Jto Taper-Mounted Lathe PCB Drill Press for Motor Shaft designed as a high precision screw thread and tapered hole. It offers Strong impact resistance that is Compatible with impact drills and different power electric drills. It consists of a Drill Clamp JT0 Connecting Rod Connector with a 3.17mm Drill Motor Shaft. This motor Shaft Coupling made up of a Brass Connector, adjusted with 3.17mm of the motor shaft. This electric drill chuck operates on a Clamping range 0.3mm-4mm drill, with 4.2mm maximum clamping fit motor shaft diameter 3.17mm.
Moreover, it supports a drill clip aperture of 6mm taper type, with an outside diameter drill chuck of 21mm. Jt0 taper the biggest end of diameter: 6. 350mm jt0 taper the smallest end of diameter: 5. 800mm outer diameter: 21mm. This mini electric drill chuck provides a connection size Jt0 (inner hole diameter is 6mm) for milling machine, lathe, drilling machine, woodworking machine. The shank with screw can be tight and flex for you