Brass Electric Motor Shaft Clamp, 3.17mm, Small Chuck Fitting for Micro Drill 1.0mm

Features:

• Used for 3.17mm motor shaft.
• The meaning of 3.17 mm (0.8-1) is the motor size is 3.17mm, clamping drill of 0.8 mm to 1 mm.
• Concentricity adjustment method: Before the lock bit need to adjust the concentricity.
• Otherwise, there will be a violent vibration.
• Power on rotate awhile on the smooth surface of the floor or glass. Lock bit after bit concentric.

Specifications:

• Material: Brass
• Color:gold(as picture show)
• Size: 25mm (L) x 8mm (Dia.)
• Diameter of back shaft (match the motor shaft): 3.17 mm

Package includes:

1 x 3.17mm drill chuck