5 Pcs Concrete Drill Bit Set, Masonry Drill Bits Set for Tile, Concrete, Brick, Glass, Plastic and Wood, Tungsten Carbide Tip Best for Wall Mirror and Ceramic Tile on Concrete and Brick Wall -6-12mm-

Features: Usage: Carbide steel cutter head is not easy to break, it can easily drill through wood, steel, plastic, glass, tungsten, marble, cement, masonry, stone, concrete, brick, ceramic tile etc. Special design: Hard alloy steel cutter head, double-threaded U-shaped groove, surface anti-rust treatment, non-slip triangular handle design, smoother drilling and chipping. The special sharpening technology, the incision resistance is small, the drilling efficiency is high, the hard alloy steel cutter head is not easy to break, and the punching is precise and effortless. Increased speed: Wood drill bits openings are neat, smooth, and free of smashed edges will not cause tremors easy positioning can increased opening speed. Specification: Type: Porcelain Drill Bits Set Material: High Quality Tungsten Carbide Tip Shank: 3-Flats Shank Color: Black & Silver Size: 2x 6mm(1/4"), 1x 8mm(5/16"), 1x 10mm(3/8"), 1x 12mm(1/2") Compatible Models: Electric hand drill, charging drill and bench drill etc User Instruction Tool: Power drill. Do not use impact mode of drill or hammers. When drilling hard material (glass, porcelain floor tile), please use water for lubrication. Package Include: 5 x Masonry Drill Bits Set 1 x Transparent Plastic Box Notes: 1. Size for manual measurement, there may be a 1 to 3 mm error, belongs to the normal phenomenon. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!