Aircraft drill bits. Aircraft extension drills are surface treated high speed steel with 135 degree quick-cut points that will not walk or wander. Designed for drilling through materials less than 4" thick. Extension drills are used in areas where extra reach is important.

Product Features:

• Aircraft Drill Bit 12". Designed for drilling through materials less than 4" Thick.
• Designed for drilling through materials less than 4-Inches thick
• Extension drills are used in areas where reach is important
• Aircraft extension drill bits are surface treated high speed steel with 135 Degree quick-cut points that will not walk or wander
• Overall length is 12 inches