Gun Drill Bits
6-16mm Drill Bit With Square Shank Cross Head Masonry Hole Drill Cutter For Hammer Drill Wall Brick Block Drilling 1Pcs
See the second picture for details

Usage:
Installed with the round handle interface hammer on concrete, stone, brick body carries out slotting operation, for building, installation of water and electricity, home decoration, modern DIY necessary tools.
Usage method:
1. when drilling, remember to fix it properly without moving; 90 ° right angle to the opening
2. when the positioning drill is drilled through, please wait a moment, and then drill slowly
3. during operation, if there is any abnormality or chip removal is not ideal, please stop working and cut it down before working
4. add water or coolant when drilling to prolong the service life of the drill bit
5. the drill bit is a consumable and will not be repaired