Impact Electric Drill Chuck + 3.17mm Motor Shaft with Chuck Key Mounted Lathe Chuck 0.3-4mm Drill Bit for Rotary instrument power

Description: High precision screw thread and tapered hole. Strong impact resistance. Compatible with impact different power electric drill. JT0 taper the biggest end of diameter: 6.350mm JT0 taper The smallest end of diameter: 5.800mm Specification: Material: Carbon Steel+Others Size Chart: Outer diameter: 21.5mm Taper: 49 minutes 24.7 seconds Work with 0.3mm-4mm( 0.01 - 0.16 ) Drill The maximum clamping 4.2mm. Connection size: JT0 (inner hole diameter is 6 mm) Package Includes: 1 Piece Drill Chuck 1 Piece T Spanner 1 Piece L Spanner 1 Piece 3.17mm Motor Shaft Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!