Imperial 82590 Aircraft Extension Bit, 5/16" Grade 5 For track & recessed lighting

For track & recessed lighting

and hand tools from rust and corrosion

Designed for home and industrial applications

Use on any paintable wall

Imperial 82590 Aircraft Extension Bit, 5/16" Grade 5 For track & recessed lightingAircraft extension bits are used for drilling holes in hard to reach places because of their 12" length. The 135 degree split point eliminates the need for center punching. This drill bit will not "wander," not even on curved surfaces. Highlights: Size: 5 16" Jobber length flutes Decimal Equivalent: 0. 3125 Shanks are spring tempered to prevent bending National Aerospace Standard 907 type B, type A243 specifications Warning: This product contains