Rodman’s Piloted & Non-Piloted 82° cobalt flute-less countersinks allow users, easy, free cutting, and clean stock removal with a surgical clean smooth-cut. The angled hole that passes through the center of the tool reduces vibration and chatter and prevents chips from clogging. They are compatible with the profile of flat and oval-head screws.  Our patented M7 alloy stands the test of time, are easily resharpened, and out-perform all others on the market. We offer a 9-pc set as well as individual sizes.