Drill Bits Hedy

Description: Can be installed in ordinary hand drill, impact drill, charging drill, flat drill and other machines. Can be used in machine drill chuck clamping range which is 10mm and above. Can not be used to open sheet metal and stone. Made of 50 # steel, serrated high-frequency quenching, long service life. Tooth hardness HRC4-48, working depth up to 25mm/1.0inch. This product is made of high-quality steel Seiko, can be used for wood and PVC pipes, etc., mainly used for home improvement downlights, spotlights dedicated. Use a small amount of anti-rust oil on the surface of the hole to avoid natural oxidation after use, can improve its service life. Specification Material: bimetal Category: