69020 Type 168 NAS 907B Aircraft 12” 135Â degree Split Point Black Oxide Drill Bit 1/2" NPT Rigid • Parabolic flute drills are

• Parabolic flute drills are designed to allow deep hole drilling without frequent drill removal to clear chips

Friction discs are then released and free to rotate with the hub and motor shaft

Boston Gear’s worm gears provide effective power transmission in applications requiring high-ratio speed reduction in a limited space using right angle (90°)

white or any other color

69020 Type 168 NAS 907B Aircraft 12” 135Â degree Split Point Black Oxide Drill Bit 1/2" NPT Rigid • Parabolic flute drills areThe black oxide treatment prevents chip welding and increases abrasion resistance Click Here for product catalog Proudly Manufactured in the U. S. A