17x 3 Angles Chevy Big Block Heads Upgrade Valve seat Cutter Set Carbide Tipped. Chevy Big Block Heads Upgrade. Valve seat Cutter Set. Carbide Tipped 3 Angle Cut. 30 DEG 45 DEG 60 DEG. Milling in the following sizes. At 45 DEGREE + 90 DEGREE. 30 DEGREE + 90 DEGREE. Contents :- 6x cutters 30,45,60 DEGREE. 2.230 – 30 Degree Top Angle Cutter For Intake. 2.230 – 45 Degree Primary Base Angle Cutter For Intake. 2.125 – 60 Degree Inner (Throating) Angle Cutter For Intake. 1.880 – 30 Degree Top Angle Cutter For Exhaust. 1.880 – 45 Degree Primary Base Angle Cutter For Exhaust. 1.750 – 60 Degree Inner (Throating) Angle Cutter For Exhaust. 3x STEMS 11/32″, 3/8″, 5/16. 3x VALVE GUIDE HONE REAMERS 11/32″, 3/8″, 5/16. 1x TAP 1/2” UNF. ALSO YOU CAN REQUEST US TO CHANGE. SIZES OF CUTTERS AND GUIDE STEMS. ACCORDING TO YOUR NEED. THROUGH e Bay MESSAGES. Engine Rebuilding Tools & Machines. Feel Free To Ask Any Question. We are here to serve you 24×7. The Items we supply are Quality and at low rates as we are manufacturing most of the items.