Excellent replacement solution for your popular drill bits. Re-fill missing bits from your expensive drill-bit kit box. These professional grade drill bits are made from durable HSS Steel with Titanium Nitrate coating. This technology coating acts as a surface lubricant that reduces friction at the cutting surface and thus heat, this effectively increases the life of the cutting face. Sharpness is maintained longer for a better value drill life. Suitable for drilling most surfaces including metals & alloys.
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