Accessories for Engraving Machines and Workpiece Holding Double Sided Engraving Tape for Workpiece Holding, and Cutter Knobs For Table Top Engraving Machines Double Sided Engraving Tape Two adhesive sides firmly holds workpieces in position. Easily move workpieces multiple times. Low residue. Cutter Knobs For use with Table Top and Top Loading Engraving Machines. 1/8″, 11/64″, and 1/4″ Cutter Knobs/Cutter Holders.