DCM, KI, PETERSON - 1/2" Round
DCM, KI, Peterson core drills have a 1/2" Round Drive
Combination valve guide core drill reamers allow you to eliminate the two step process of drilling then reaming to replace valve guides. High quality HSS construction for long life. A single pass will size the valve guide bore to 1/2" for press fitting of new 1/2" OD valve guide inserts. Select the appropriate tool shank diameter and shape for your Guide and Seat Machine.