Cobalt Aircraft Extension Drills, 1/2, 3PK

045 in, Abrasive Material Aluminum Oxide, Max.

0625 in, Max.

Made from premium quality high speed steel with ground threads, hardened and tempered for longest life in a variety of materials..

.6 in. Hp Cup Wheel For Stone A 5/8-11 threaded arbor for SPIN-ON mounting reduces downtime for wheel changes and helps you finish your toughest grinding jobs faster. Walter HP cup wheels are designed for rough grinding or snagging work.

.Broach cutting using Drillco cutters means you can produce large diameter holes efficiently and quickly with less energy, faster penetration and less thrust.  Rather than drilling out the metal with a solid drill, Drillco cutters remove only the periphery of the hole, ejecting a slug at the end of the cut.

82° Countersinks are used for countersinking flathead screws.

DRILLCO 1200C132 Cobalt Aircraft Extension Drills, 1/2, 3PK.

Economy Supplied Air Shield with Low Pre.

DRILLCO 1200C132 Cobalt Aircraft Extension Drills, 1/2, 3PK.

Economy Supplied Air Shield with Low Pre.