15/64" x 12" HSS Aircraft Extension Drill Bit

More Details

• 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