Drill America
Drill America . #4 x 12´´ High Speed Steel Aircraft Extension Dr #4 (Pack of 12
- SKU:
- BIGC1879
- UPC:
- 887861216500
- MPN:
- DWDA/CX124P12
- Condition:
- New
Description
Drill America #4 x 12" High Speed Steel Aircraft Extension Drill Bit (Pack of 12), DWDA/C Series
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- High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
- Black oxide treatment adds lubricity and creates small pockets on the surface of the tool that act to hold coolant near the cutting edge
- Round shanks allow use with a wide variety of toolholding systems
- When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
- Manufactured to National Aerospace Standard 907