4mm Hexagonal Shank Spiral Flute Cross Alloy Drill Bits Glass Tile Four Edge Drivers

1. Material: carbide
2. Use: can be used for electrical drill, impact drill, table drill and other clamping fastening
3. Shank hexagonal design, not easy to slip, so that the drill clamping more tightly
4. Four-edged drill bit, drilling faster, more neat, cutting sharper
5. Adding water can effectively avoid damage to the drill
6. Powerful, applicable to a variety of materials
7. Need to add water processing materials: wave brick, ceramic tile, glass, marble; dry drilling materials: concrete, red brick, glazed brick, wood, plastic, PVC, honeycomb brick, foam brick
8. Specifications: 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm
9. Weight: 3mm: 12g; 4mm: 13g; 5mm: 16g; 6mm: 18g; 8mm: 24g; 10mm: 32g; 12mm: 39g