Cutting tools determine manufacturing precision. The right drill bit and tap speed up the job and save the workpiece from scrap.
Drill Bit Types
- HSS: General purpose — mild steel, aluminium, wood.
- HSS-Co (cobalt): For stainless steel and hard alloys. Heat resistant.
- TiN coated: Reduced friction, longer life.
- Carbide tipped: Concrete, stone or very hard materials.
Tapping and Threading
A tap cuts internal threads, a die cuts external threads. The critical factor is the pilot hole: Hole = Thread diameter − Pitch
- M6 × 1.0 → 5.0 mm
- M8 × 1.25 → 6.8 mm
- M10 × 1.5 → 8.5 mm
- M12 × 1.75 → 10.2 mm
Speed and Cooling
The classic mistake is high speed with light pressure — it burns rather than cuts. Hard materials need low speed, steady pressure and plenty of coolant. Continuous curled chips mean you are cutting correctly; dust means the bit is burning.
Browse our cutting tools range.
From Tuzla Civata: Since 2007 we have supplied the defense industry, shipyards, construction and manufacturing under engineer-led management. If you are unsure about product selection, get in touch — we will determine the right material together.