Description
Drillco 400N21 Nitro Drill Bit Set 21-Piece
The Drillco 400N21 Nitro Drill Bit Set 21-Piece Set includes:
- 21 Drill bits from 1/16″ to 3/8″ by 64ths
- Metal Container
Features:
- Product no. 400N21
- Heavy duty HSS (High Speed Steel) Black & Gold Nitro jobber drill bits
- 135º split point bits
- Nitride surface treatment:
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- Provides a hard, protective layer to the bit
- Increases hardness without increasing brittleness
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- Body and clearance are black & gold surface treated to maximize lubricity
- Recommended for drilling in:
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- Stainless steel
- Other hard metals
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