5Pcs/Set 5-12mm Diamond Drill Bit Set for Glass Ceramics Tile Granite Marble Universal Shank

• The inside is waxed to cool and dry

• Multipurpose drills with high efficiency

• Made of premium material, it is has a long service life

Specification:

• Product: Marble hole opener

• Material: Emery

• Drill diameter: 5mm 6mm 8mm 10mm 12mm

• Applicable machine: common hand drill/angle grinder

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