1/2" x 12" HSS Aircraft Extension Drill Bit
UNIVERSAL CUTTING TOOL $15.9015.90- Ideal for drilling in mild steel where extra length for reach is required
- 135 degree split point for self-centering and reduces thrust
- Black oxide surface treatment that is abrasion resistant, reduces chip welding and improves chip flow
- Manufactured to Aerospace Standard 907
- Sizes smaller than 1/16 and #52 have the 118 degree standard point
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