Item Description:Name: marble glass ceramic tile bitCharacteristics: the opening of the hole is neat, smooth and unbroken edge, without causing tremors. The novice is easy to locate. The notch resistance is small and the opening speed is improved. It is easy to decorate after opening.Application: glass, ceramic, ceramic tile, etcItem Specification:Length: 6mm 8mm 10mm 12mmCategory: Hard alloy impact drillApplication: Glass,Ceramic,TileFeature: Glass Drill BitsUse: Otheris_customized: YesDIY Supplies: MetalworkingType: Spade Drill Bitlength: 6-12mmMaterial: