6pcs 4-12mm Hex Shank Tungsten Carbide Glass Drill Bit Cross Spear Point Head Drill Bit

Description: 6pcs 4-12mm Hex Shank Tungsten Carbide Glass Drill Bit Titanium Cross Spear Point Head Drill Bit Specification: Material: Tungsten Carbide Coated: Titanium Shank: 6.35mm (1/4") Hex Shank Drill Diameter: 4mm/ 5mm/ 6mm/ 8mm/10mm/ 12mm Application: Masonry Drilling Quantity: 6pcs Features: 1.Hex shank titanium triangle drill,using imported hard tungsten steel alloy material. 2. It has strong toughness and wear resistance. 3. Incision resistance are small, it can increase the opening speed, long service life. 4. Industrial grade of TIN Coated Carbide Point with 4 Cutting edges. 5. Can be installed in the hand drill, electric drill. 6. Suitable for ceramics, granite, tiles, stone, wood, plastic,concrete wall to drilling hole. Tips: Pour water over area to be drilled. Never allow your drill bit to overheat, take small breaks to allow it to cool by dipping it in cold water. Drilling holes without water will cause excessive heat generated during the drilling process & may cause the bit to become blunt & lead to poor drilling performance. The hardness of the material & the operator determine the overall performance. Do not apply too much pressure as your tile/glass will break just let the drill do the work. Use rotary action only but not hammer action, wear safety glasses. Package Included: 6pcs x Glass Drill Bit More Details: