??? Portable cutter A go-anywhere plasma cutter, the AirForce 250 cuts mild steel up to 3/16 in. thick and aluminum and stainless steel up to 1/8 in. thick. It weighs 35 lbs. and runs on 115v current. Price: $824 without air compressor, $1,049 with air compressor. Contact Hobart Welders, Dept. FIN, 600 W. Main St., Troy, OH 45373, 800/626-9420.