5pcs Efficient Universal Drilling Tool Multifunctional Triangle Cross Alloy Drill Bit Set

Triangle Drill Bit, Glass Drill Bit, Concrete Drill Bit Set, Tile Drill Bit, Masonry Drill Bit Set Multi-Purpose Carbide Tip Drilling Bit Set for Tile, Concrete, Brick, Glass, Plastic and Wood The process of oxynitriding of the cutter head strengthen the drill hardness Anti-rust treatment, clean and sharp without burrs Small incision resistance, opening neat, smooth, not breaking the border Remember to add water or coolant when drilling 5 different sizes suitable for your different needs Materials: Cemented Carbide Weight: 125g 5PCS: 3mm + 4mm + 5mm + 6mm + 8mm Compatible Device: Hand drill, Rechargeable drill, Wrench Package list:5 x Universal Drilling Tool