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. 2x STEMS 11/32″, 3/8″, 5/16. 2x VALVE GUIDE HONE REAMERS 11/32″, 3/8″, 5/16. SIOUX Valve Seat Grinding Stones 12ps With Stone Dresser & 2 pcs Pilots + Holder. Valve Seat Grinder Stone Dresser. VALVE SEAT GRINDER STONE DRESSER STAND FOR SIOUX. Thread size: 3/8 X UNF. Length – 60MM – 1 Piece. 385 piloted stone holder stand. SIOUX VALVE SEAT GRINDER STRAIGHT PILOTS SET. Holder Sioux 11/16 Thread With Drive Ball. HEAVY DUTY SIOUX STYLE VALVE SEAT GRINDER STONE HOLDER THREAD 11/16. Grinding Wheels Set 12 Pcs. VITRIFIED BOND 80 GRIT MEDIUM. ALUMINIUM OXIDE PINK STONES. 25MM (1″) TO 62MM (2.1/2″). 2.1/2 – 1 PCS. 2.3/8 – 1 PCS. 2.1/4 – 1 PCS. 2 – 1 PCS. 1.7/8 – 1 PCS. 1.3/4 – 1 PCS. 1.5/8 – 1 PCS. 1.1/2 – 1 PCS. 1.3/8 – 1 PCS. 1.1/4 – 1 PCS. 1.1/8 – 1 PCS. 1 – 1 PCS. STONE THREAD – 11/16.