Portable Micro Percussion Marking Machine Voltage 115 Phase 1 60 Hz Marking Area 4-5/16 in x 1-1/2 In. Character Height 0.059 in to 1.570 In. Marking Speed 1 to 4 Letters Per Second Marking Depth 0.005 in to 0.015 In. Cutter Dia 0.125 In. Cutter Material Carbide Overall Width 16-1/2 In. Overall Depth 23-5/8 In. Overall Height 15-3/4 In. Air Requirements 90 psi