Sai Savera Electric Mini Drill Chucks 0.3-4mm Capacity Range 3.17mm Shaft Connecting Rod Electric Drill Grinding Mini Drill Chuck Key Keyless Drill Chucks 0.3-4mm Capacity Range W/ 3.17mm Shaft Connecting Rod

Description Features high precision screw thread and tapered hole. Strong impact resistance. Compatible with impact dril and different power electric drill. Jt0 taper the biggest end of diameter: 6.350mm jt0 taper the smallest end of diameter: 5.800mm outer diameter: 21.5mm taper: 2 degrees 49 minutes 24.7 seconds clamping range: 0.3mm-4mm (0.01 "- 0.16") drill, the maximum clamping 4.2mm. Connection size: jt0 (inner hole diameter is 6 mm) for milling machine, lathe, drilling machine, wood working machine. The shank with screw can be tight and flex for you. Specification drill clip aperture: 6mm taper type outside diameter drill chuck: 21mm clamping range 0.3mm-4mm drill, 4.2mm maximum clamping fit motor shaft diameter 3.17mm package include 1 x 0.3-4mm drill chuck 1 x 3.17mm drill shaft 1 x drill key. High precision screw thread and tapered hole Compatible with impact dril and different power electric drill Drill clip aperture: 6mm taper type ,outside diameter drill chuck: 21mm Clamping range 0.3mm-4mm drill, 4.2mm maximum clamping fit motor shaft diameter 3.17mm Package include 1 x 0.3-4mm drill chuck 1 x 3.17mm drill shaft 1 x drill key