Quick facts
- Brand: PATIKIL
- Price: USD 14.99
- Rating: 4.60 (252 reviews)
If you regularly drill tougher materials (like stainless steel) and want a bit designed for higher heat and wear resistance, the PATIKIL 10.5mm M42 cobalt jobber drill bit is a strong shop-ready option. It uses M42 high-speed steel formulated with 8% cobalt, plus a titanium nitride (TiN) coating to help resist oxidation/corrosion and extend service life.
You can view the current price and full details on Amazon here.
This bit features a 135° split point and a straight shank, with a 2-flute spiral design. It’s sized at 10.5mm (about 0.41 in / 13/32 in), with a 75mm (2.95 in) flute length and 133mm (5.24 in) overall length—useful when you need a precise 10.5mm hole without stepping up through multiple sizes.
For best results, keep the drill at a 90° angle to the workpiece and adjust RPM to match the material. As a general guideline, harder materials should be drilled at lower speeds to improve cutting efficiency, help protect the work surface, and extend bit life.
- M42 high-speed steel with 8% cobalt for high hardness, wear resistance, and heat resistance
- Titanium nitride (TiN) coated finish designed to help prevent oxidation/corrosion and extend service life
- 135° split point jobber-style bit with straight shank and 2-flute spiral design
- 10.5mm cutting diameter (≈0.41 in / 13/32 in), 75mm flute length, 133mm overall length
- Suitable for drilling stainless steel, iron, aluminum, copper, plastics, and wood
What you get: 1 drill bit (10.5mm).
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