Double End 135deg M2 High Speed Steel Twist Drill Bits
Description
The most economical coating. Black oxide adds corrosion protection, increases tempering and stress relieving of the bit, reduces galling and chip welding, and aids in retaining drilling lubricants. Black oxide is suitable for drilling iron and steel but is not recommended for drilling aluminum, magnesium, or similar materials.
Additional information
| Weight | N/A |
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| Dimensions | N/A |
