0.3-4mm Mini Electric Drill Chuck JTO Taper with 5mm Shaft Connecting Rod for 775 Motor

Features: - High precision screw thread and tapered hole.  - Strong impact resistance.  - The shank with screw can be tight and flex for you.  - Application: Compatible with impact dril and different power electric drill.  - For milling machine, lathe, drilling machine, wood working machine.Also fits 775motor.    Specification: Material:High Carbon Steel;  Outside diameter:21mm;  Taper:2 degrees 49 minutes 24.7 seconds;  Clamping range: 0.3mm-4mm (0.01" - 0.16") Drill;  The maximum clamping: 4mm;  Connection size: JT0 (inner hole diameter is 5 mm);  JT0 taper the biggest end of diameter: 6.35mm;  JT0 taper The smallest end of diameter: 5.80mm;     Package Included: 1 x 0.3-4mm Drill Chuck;  1 x 5mm Shaft Connecting Rod;  1 x Chuck Key;  1 x L-style key;  2 x Screws