Brand: ['Drillco']
Products with this attribute (10 total)
33/64,Extra Length Drill 12" OAL, 1/2" Shank
DRILLCO 1000EC138 19/32 1/2" Shank Cobalt S&D Drills Cobalt Bronze 135 degree Point - MROSupply.com
DRILLCO 1000EF214 1.7/32 1/2" Shank S&D Drills High Speed Steel Black & Gold 135 degree Point - MROSupply.com
DRILLCO 1312AR136 9/16 Extra Length Drills High Speed Steel Black Oxide 118 degree Point - MROSupply.com
DRILLCO 1318AR137 37/64 Extra Length Drills High Speed Steel Black Oxide 118 degree Point - MROSupply.com
DRILLCO 160A15624B 7/8x24 Masonry Drills Carbide Tip Black & Gold Straight Shank - MROSupply.com
DRILLCO 182F12813 7/16x13 Masonry Drills Carbide Tip Bright Spline - MROSupply.com
DRILLCO 206A120CP 5/16-18 Hand Taps 6" Extension High Speed Steel Bright & Black Plug - MROSupply.com
DRILLCO 215A120CP 5/16-18 Spiral Point Taps Oversize High Speed Steel Bright Plug - MROSupply.com
The combination of rotation and percussion helps the drill achieve a cutting and grinding rotary action at the same time as a chipping percussive action, chipping away at rock to produce a hole. Usually these motions are hydraulically or pneumatically driven.