PILOT DRILL 7 HOLE (4-12 MM)

Product Description :

• Used for the Holstein diamond. When drilling the stone or neon stone. The device will help prevent slipping.
  Or a flick at the beginning of the drill. (This may cause the tile surface to look uneven.) In addition, the device also has a water hole. For connecting to the water jet.
  To help the water to be fed. While doing the drill, it is easy and continuous. Work done alone. And extend the life of the drill.