Comp Cams 1.550 SPRING SEAT CUTTER FOR .630" GUIDE

Cutter for Spring Seats (Cuts to 1.550" OD / .630" ID)

Cuts cylinder head spring seats to 1.550" outer diameter / .630" inner diameter

Requires the use of an arbor/pilot, which are available for 5/16", 11/32" & 3/8" valve stem sizes