Pferd 90702

PFERD Marking pen with coarse needle For engraving markings in metal, glass, plastics and even heat-treated tool steel (with fine needle). Patented pneumatic engraving pen working at about three times the frequency of competitive products. Does not transmit harmful vibrations to the hand. Includes tungsten carbide engraving needle with 6.5' air supply hose (with 1/4" NPT female threaded connection).