Masonry Drill Bit

Cover dust

Dust Cover

For masonry / concrete

Invention Awards / Patented protection
Depth Ruler: Control drilling depth
Retractable: Dust collector
Bolster: Suitable for various brands of dill
Prevent dust covered on boy/eyes/breathe into lungs.
Prevent waste time to clean the environment after construction.
Unplug/Light/Easy for using
Suitable material: