5-12mm Diamond Drill Bit Set for Marble Granite Ceramic Glass Tile Stone - 5-6-8-10-12 mm

• The inside is coated with wax to cool and easy to use

• Multipurpose drill sizes, extremely efficient and long service life

• For drilling granite and marble, masonry, concrete, tile/ceramic, glass, hard plastics

Specification:

• A Set: 5/6/8/10/12 mm

• B Set: 6/8/10/12 mm

• Material: diamond

• Length: 66mm, with cooling wax

Note:

• 1. When using, the speed should not be lower than 2600 rpm, the faster the speed, the better the effect.

• 2. Do not press down hard, otherwise, it will be easily damaged.