Drillco® Aircraft Extension Drill Bit, #30, High Speed Cobalt, 1-5/8" Flute, 135° Point Dust Collector Fittings For use on Dayton-style lugnuts

For use on Dayton-style lugnuts that are deeply recessed and where space is limited

engineered ceramic grain and shape

The Quad Edge™ tip delivers a precision start and four cutting edges to create smaller chips for faster removal and less heat for longer bit life

Diablo made Dura-Carbide™ features up to 2X more carbide that withstands up to 1800°F of intense heat to combat rebar hits versus standard bits that fail at 800°F

Liquid filled glycerin gauge accurately shows pressing force

Drillco® Aircraft Extension Drill Bit, #30, High Speed Cobalt, 1-5/8" Flute, 135° Point Dust Collector Fittings For use on Dayton-style lugnutsManufactured to NAS 907 Type J specifications, 135 degree split point, surface treated with jobber flute lengths for drilling holes in hard to reach places Heavy duty construction for portable or machine drilling in high tensile strength alloy steels, stainless steels, titanium, and other difficult to machine materials Specifications Material High Speed Cobalt Drill Size #30 Decimal Drill Size 0. 1285" Overall Length 12" Flute Length 1 5 8" Point