Stevens Engineering Inc. Home tombstones, tombstone, machine tombstone, subplates, subplate, machine, columns, column, machine column, angle plates, angle plate, T column, vises, clamps, tooling, fixturing, custom fixtures, fixture, risers, nut, bolt, stud, washers, tombstone, column, subplate, vise, modular fixturing, machining, machine, machinery, milling, vertical, horizontal, VMC, HMC, pallet, pallets Specializes in manufacture of modular fixturing systems for horizontal and vertical CNC machining centers. Components include subplates, tombstones, vises, clamps, and bushings