VALVE SEAT & FACE CUTTER SET- 12 PCs SET. FOR AUTOMOTIVE INDUSTRIES (WOODEN BOX). 1-7/8″, 1-3/4″, 1-5/8″, 1-1/2″, 1-7/16″, 1-5/16″, 1-1/4. 5/16, 7mm, 8mm, 8.5mm, 9mm, 9.5mm, 10mm. Manufactured from quality carbon steel. Best Use For all Vintage Cars, Jeeps, Tractors, Trucks and Motorcycles and Jeep, Vintage Morris, Mini, Mercedes, Perkins P-6, Leyland. These Valve seat Cutters are made of high quality carbon steel, properly hardened and tempered, each cutter in accurately grade for best results. These are must for Vintage Car, Bikes, Jeep, Tractors, and Trucks.