Heavy Duty Cobalt Center Drill Bit Set Top Shelf Gear For Beating Through Hard Metals Metric One Five Millimeter Five Piece Setup Gears Up For Quick Spins And Smooth Chip Pulling On Stainless Steel And Alloy Projects Daily
✔️ HSS cobalt steel center drills cover 1 0 to 5 millimeters
This five piece metric center drill kit gives you clean starting holes for shop machines that handle stainless steel, tool steel, and copper. The set covers everyday measuring needs right down to half an inch width for lathe work or milling setups. You get straight cuts that keep the drill steady when you transition to bigger bits. It comes packed in a simple plastic tray that keeps your bench tidy.
✅ Wide spiral flutes pull chips out fast while keeping cuts cool under load✅ Titanium aluminum nitride surface layer boosts wear resistance on hard stock
✅ Curved bottom point centers cleanly to stop bit walk when kicking off holes
✅ Ready for speeds above three thousand rpm so the cutting edges actually bite
✅ Five piece collection holds 1 zero millimeter twice plus two three four and five millimeter tips
💡 Why pick cobalt center drills for tough metals instead of standard twist bits?
These handy cutting tools handle friction heat and keep pilot holes dead-on when you tackle hardened steel or copper castings.
- High speed steel mixed with cobalt stops edge dulling on dense alloy bars
- Precision ground flutes dump debris fast while preserving exact locating marks
- Rigid core geometry eliminates wobble so your next drill step stays perfectly aligned