COMP Cams 1.680" Spring Seat Cutter - Cuts Guide: .630" Tongue Jack well-suited with nearly every street

well-suited with nearly every street car or race car electrical system

minor scuffing and scratching

Black zinc chromate finished

3/8 in NPT Male Inlet

Integrated speaker and boom mic pockets

COMP Cams 1.680" Spring Seat Cutter - Cuts Guide: .630" Tongue Jack well-suited with nearly every streetMost high performance engines today require the use of larger than stock diameter valve springs. This 1. 680" Spring Seat Cutter from COMP Cams will allow the engine builder to machine the cylinder head to the proper size for your spring. Each cutter requires the use of an arbor pilot, which are available in three different sizes. This valve seat cutter allows you to enlarge the cylinder head spring pocket to 1. 680" outer diameter while reducing the