7PCS Titanium Alloy Drill Bit Set - Universal Multi-Purpose Drill Bits for Glass, Tile, Concrete & Metal - High Efficiency Triangle & Cross Drill Tap Bits - Perfect for DIY Home Improvement & Construction Projects

Description 5/7PCS Efficient Universal Drilling Tool Titanium Combination Drill Tap Bits Set Triangle Drill Bit GlassDrill Bit Tile Drill Bit Concrete Drill Bit Multifunctional Cross Alloy Drill Bit Tip Tools Features: 1.The process of oxynitriding of the cutter head strengthen the drill hardness. 2.Anti-rust treatment, clean and sharp without burrs. 3.Small incision resistance, opening neat, smooth, not breaking the border. 4.Remember to add water or coolant when drilling. 5.7 different sizes suitable for your different needs. Specifications: Materials: Cemented Carbide Weight: 125G 5PCS: 3mm+4mm+5mm+6mm+8mm 7PCS: 3mm+4mm+5mm+6mm+8mm+10mm+12mm Compatible Device: Hand drill,Rechargeable drill,Wrench Package Contents: 5/7PCS * Universal Drilling Tool