Cobalt Twist Drill Bit Pack (2.5 mm, 10 pcs)
Key points
- Cobalt-alloyed steel holds its hardness when the tip runs hot on stainless
- 2.5 mm is the pilot size behind M3 screws and self-tapping fixings
- Ten identical bits keep the drawer stocked through a batch of work
- Intended for wood, plastic, copper, aluminium and stainless steel
- Cobalt holds its edge in stainless, so the surface is not work hardened by a dull tip
| Pack Quantity | 10 Pieces |
| Diameter | 2.5 mm |
| Material | Cobalt High-Speed Steel |
| Shank | Straight Round |
| Suitable Materials | Wood, Plastic, Copper, Aluminium, Stainless Steel |
| MOQ | 1 pack |
| MOQ | 1 pack |
| Price basis | FOB China |
| Payment | T/T bank transfer |
| Packing | Export carton with moisture-resistant packing |
| Sample | Available before a bulk order |
| Lead time | Confirmed in your quotation |
Product detail
A workshop pack of ten identical 2.5 mm twist drills in cobalt high-speed steel, the size that gets used up fastest on pilot holes and on stainless steel fittings. Cobalt-alloyed high-speed steel keeps its hardness when the tip runs hot, which is the difference between a drill that keeps cutting stainless sheet and an ordinary bit that dulls and then polishes the surface instead of biting. The 2.5 mm diameter is the pilot size behind M3 screws and self-tapping fixings, and it is the usual size for drilling hinge plates and cabinet hardware on site. The pack is intended for wood, plastic, copper, aluminium and stainless steel. Ten identical bits in one pack keeps the drawer stocked through a batch of work instead of stopping the job when a single bit breaks. Kitchen and shopfitting crews buy the pack because hinge and handle screws are drilled in a run, and a snapped bit mid-run costs more than the bit does. A size a workshop runs through quickly, so a pack of identical bits keeps the drawer stocked instead of sending someone out for one.
