Designed with a robust  ¼” quick change hex shank, MILWAUKEE SHOCKWAVE Impact Hole Saws give professionals a hole making solution to use with impact drivers.  Utilizing a thin wall, 8 TPI design, Impact Hole Saws deliver a burr-free cut up to 40% faster than standard bi-metal hole saws.  The included ejection spring removes the frustration of manually removing slugs by automatically ejecting the material.  A stop shoulder design prevents over-drilling into material and potentially damaging inner components of electrical and junction boxes.  Chose Impact Hole Saws for use in plastics and thin gauge metals up to 1/8” thick.