Valve Seat Cutter 14PCs Carbide Set For Car & Bikes With Wooden Box. Carbide tipped valve seat cutters widely appreciated for optimum performance over longer periods than high speed steel tools. We use state-of-the-art technologies to produce these tools which are available in a wide range as per customer requirements at industry leading prices. HARD METAL MILLS SET 14 PIECES. CUTTER SIZE AS BELOW. HOLE MILLS – 28MM, 25MM, 23MM X 70 DEGREES. 45 DEGREES: 25MM, 24MM, 23MM, 22MM, 21MM, 32MM, 30MM, 29MM, 28MM, 27MM, 26MM. HSS FIX REAMER – 6.5MM, 5MM, 4.5MM. GUIDE – 5.5MM, 5MM, 4.5MM.