3pcs 14mm Nitride Titanium Coated High Speed Steel (HSS) 4341 Twist Drill Bits Curtain Accessories Gearbox output shaft and motor

Gearbox output shaft and motor shaft are come to be a rectangle

Both ends of the internal thread blind hole positioning screw

Provides protection against rain

They maintain stable linear motion while reducing friction and vibration

Fan Noise Level (dB-A): 69 dB-A

3pcs 14mm Nitride Titanium Coated High Speed Steel (HSS) 4341 Twist Drill Bits Curtain Accessories Gearbox output shaft and motor4341 high speed steel contains high content of carbon and alloy elements, providing excellent cutting performance, high heat resistance, high hardness, wear resistance and durability. Suitable for applications requiring precise and efficient processing. Black nitride and gold titanium dual coatings can apply lubricant better for smoother drilling and are more durable and corrosion resistant. Large spiral grooves facilitate the export of metal chips,