6-70mm Diamond Vacuum Brazed Drill Bits M14 Hole Saw for Marble Tiles Granite Drilling

Sturdy Hole Saw

The drill bit is made of high-frequency welding of diamond and metal,sharp and wear-resistant.

Neat And Fast

The opening resistance of the metal drill is small,Smooth chip removal,Not easy to produce tremors.
(First 45 degree drilling to locate, then vertical punch)

Wax Block

The 6/8/12mm stone drills come with wax to help cool the drill bit. (Less heat, Dry/wet drilling)

Application

The hole drill,matched with the M14 adapter,is connected to the angle grinder or electric drillto work.Suitable for granite, marble, ceramics, glassware, etc.