5/6/8/10/12mm Hex Shank Triangular Drill Bit for Granite Stone TilesOOTDTY Features: The widened helical chip removal groove design can effectively prevent build-up, leakage and retention, and operate effectively. Suitable for ceramic, granite, tile, stone, wood, plastic, concrete wall is a drilling hole. The hexagonal chuck design makes the electric drill hold tighter without slipping. It can be installed in a hand drill, an electric drill. The incision resistance is small, increases the opening speed, long service life. Specification: Material: AlloyColor: BlackSize: As the picturePackage Included: 10pcs Hexagonal Triangle Drill Bits/Set(5mm x 2.6mm x 4.8mm x 2, 10mm x 1.12mm x 1)Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.