Description: Drill Chuck: Material: High-carbon steel Outer diameter: approx. 21mm Taper: 2 degrees 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 6.25mm) Strong impact resistance. High precision screw thread and tapered hole. High strength and hardness. Compatible with impact drill and different power electric drill. 8mm Black Mini Electric Motor Shaft: Match the motor shaft diameter: 8mm Drill clamp JT0 connection rod connect motor drill for 8mm motor shaft. 9mm shaft coupling motor connector brass. Close-fitting with 8mm motor shaft. High strength and hardness. For 0.3~4mm JT0 drill clamp. Package Includes: 1 Piece Drill Chuck 1 Piece Spanner/key 1 Piece 8mm Shaft Connecting Rod
