VALVE SEAT & FACE CUTTER SET OF 15 PIECES – CARBON STEEL. 20° / 70° Bore Cutters. 1-3/4″, 1-1/2″, & 1-1/4. 2″, 1-7/8″, 1-3/4″, 1-5/8″, 1-1/2″, 1-7/16″, 1-5/16″, 1-1/4″, 1-3/16″, & 1-1/8″. Pilots / Guides / Stems X 8 Pieces Sizes Include – 7mm, 8mm, 8.5mm, 9mm, 10mm, 5/16″, 11/32″ & 7/16. Arbor / Stem Rods – 1 Piece Stem Handles – 2 Pieces All Pilots Are & Centered At Both Ends, For Easy Reduction Of OD To Suit Your Requirements. Manufactured From High Grade Carbon Steel. Ideal For The Vintage Cars, Bikes & Old Engine Restoration Packed In A Sturdy Metal Box.