1PCS Drill Chuck 0.6-6mm 0.3-4mm 1.5-10mm JT0 B10 B12 Adaptor Connecting Rod 4/5/6/8/10/12mm Shaft Sleeve Steel Copper Coupling (Color : B12 Chuck and 12mm)

[HIGH STRENGTH AND HARDNESS] - Wear and oxidation. [EASY TO USE AND INSTALL] - The chuck can lock onto the bits tightly and sturdy,not easy to loose. [JAW] - Classic jaws design drill chuck with excellent clamping capability. Quenching hardening and precision grinding to assure good wear. [APPLICATIONS] - Suitable for drilling equipment such as portable drilling machine, drilling machines, milling machines, lathes, etc. It is for many different types of drilling machines. [MAINTENANCE] - Clean up the mechanical waste and foreign matter left in the drill chuck in time after using it. Use the appropriate chuck key for disassembly. Improper installation or disassembly of the drill chuck will increase the accuracy and runout value.