Twist Drill Bits 6.7mm Bit with Straight Shank High Speed Steel Hand Drill Bits Rotary Tools for Wood Plastic Rubber Model 5 Pcs

Product description Mini Twist Drill Bits Precautions for Use 1.

Before drilling, mark the position where you need to drill.

If it is a material with a relatively smooth surface, it is recommended to cover it with clay and other items to avoid the drill bit from slipping on the surface of the product.

2.

When drilling, you need to add water while drilling, or directly put the product into the water to drill, which can effectively reduce the wear and tear of the product in use.

3.

Drilling needs to be effected at high speed, smooth and without shaking, lightly press, and cannot be squeezed hard.