IRWIN® 10507900 Diamond Drill Bit Set 4 Piece 5-8mm Surface Treatments Drillbit diameter: 12

Drillbit diameter: 12

It is supplied with an easy to remove reducer plate for small area and re-touching work

Blade: 300 x 250mm (12 x 10in)

non-slip handle and overstrike protection

IRWIN® 10507900 Diamond Drill Bit Set 4 Piece 5-8mm Surface Treatments Drillbit diameter: 12The Irwin Diamond tipped drill bits are suitable for fast smooth cutting in all grades of hard and soft tiles. Their raised diamond grit edge makes for easy starting in hard tile without the need for a guide. The diamond grit is tough brazed diamond which ensures fast cutting and long life. The drill bits reverse spiral forces water towards its cutting head, keeping the diamonds cool to increase cutting speed and prolong life. Drilling with water will