M42 Cobalt Twist Drill Bits Set 1–10mm 19pcs
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Our M42 8% cobalt twist drill bits set, 1–10mm metric sizes, 19-piece kit, 135° split point, three-step cutting design is engineered for drilling stainless steel and hard metals with precision and efficiency. Manufactured from premium M42 cobalt steel with a hardness of 68–70 HRC, this set delivers exceptional heat resistance, wear resistance, and long tool life. The advanced three-step design enables clean, controlled cutting through stainless steel, hard metals, aluminium, and plastic, while the sharp cutting edges produce long iron chips for faster penetration and reduced friction. Capable of operating three to five times faster than standard drill bits, this set offers superior performance and a lower cost per hole across demanding professional and workshop applications.
Key Features
- Premium M42 steel with 8% cobalt content for enhanced durability
- 68–70 HRC hardness for excellent heat, wear, and chip resistance
- Three-step cutting design for stainless steel, hard metals, aluminium, and plastic
- 135-degree split point for efficient and accurate drilling
- High cutting efficiency producing long metal chips instead of grinding
- Capable of running three to five times faster than standard drill bits
What’s Included
- 19 x Metric M42 cobalt twist drill bits (1mm to 10mm in 0.5mm increments)