6Pcs/Set 6-16mm Diamond Drill Bit Set for Marble Tile Granite Durable Drill Bits Kit

• The inside of the drill bit is waxed to cool and dry

• Multipurpose drills with high efficiency

• Made of high-quality material, it is has a long service life

Specification:

• Product: Marble hole opener

• Material: Emery

• Drill diameter: 6mm 8mm 10mm 12mm 14mm 16mm

• Applicable machine: common hand drill/angle grinder

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