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HSS-Cobalt DIN388 4.25 mm drill bits
The 4.25 mm tube blister drill bits are made of rectified HSS COBALT DIN 338N 118º high-speed steel, which which makes them ideal for drilling steel and iron. Its black color gives it a professional and durable appearance.
- Diameter: 4.25 mm
- Made of rectified HSS COBALT DIN 338N 118º high speed steel
- To drill steel and iron
- Black color for greater durability