Advantage: High precision screw thread and tapered hole. Strong impact resistance. The shank with a screw can be tight and flexed for you.

Application: Compatible with impact drills and different power electric drills. Also fits a 3.17mm shaft motor.

For milling machine, lathe, drilling machine, woodworking machine.

Type:
taper the biggest end of diameter: 6.350mm
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: (inner hole diameter is 6 mm)

Specification:
Drill clip aperture: 6mm taper type
Outside diameter drill chuck: 21mm
Clamping range 0.3mm - 4mm drill, 4.2mm maximum clamping
fit motor/machine shaft diameter: 2.13mm, 3.17mm, 4mm, 5mm, 6mm, 8mm