Harvey Tool 30510, 90° Engraving Cutter, 1/8" Shnk x .062" LOC, 4" OAL, Type II | eBay
Harvey Tool 23608 | 1/8" Diameter x 1/8" Shank x 0.0620" LOC x 1-1/2" OAL Uncoated Solid Carbide Engraving Cutter Marking Cutter for Ferrous Materials - All Industrial Tool Supply
Main Differences Between Engravers & Marking Cutters - In The Loupe