1) Unscrew the drill chuck and put the triangular handle into the drill bit
2) Tighten the triangle drill with a tightener and install the multi material drill bit.
3) when drilling holes in high hardness materials.Use WATER for lubrication.
4) Try to keep the drill vertical when drilling. The surface of the drill bit is made of hard alloy and rust- proof material, longer service life Product
Feature :
1.) The surface of the drill bit is made of hard alloy and rust-proof material, so it has a longer service life,Plus higher hardness and more wear-resistant than ordinary drills.
2.) The shape of the product is designed to efficiently remove chips, speed up the drilling, and efficiently complete the task.and Hex shank allows drill bit easy plug and to be held tightly.
3.) The multi-material drill bit can be used for glass, ceramic tile, cement wall, plastic iron, wood, etc. When drilling hard materials (glass, tile, marble or granite),
4. ) please lubricate with water.