Bihui M14 Dry Diamond Hole Saw Set BU-DBDMK6

- Fast-cutting diamond tip, fewer chips.

- Diamond brazed cutting rim with dust-discharging holes.

- M14 Thread fits directly onto angle grinders.

- Can support speeds up to 11,000rpm.

- Suitable for drilling porcelain, marble and granite.

- Set includes sizes: 6mm, 8mm, 20mm, 35mm, 50mm & 70mm.

To start drilling, place the bit on a 45° angle. Once the hole has been started return Drill Bit to 90°. Continue drilling but move in a circular motion.