STURDY QUALITY, IN TOP PRECISION VERSION, DRUM AND SLEEVE MATT CHROMED FINISH, HAMMER BLOW GREY LACQUERED FRAME, WITH INSULATION PLATES, CARBIDE SURFACES, LAPPED, SPINDLE HARDENED AND GROUND, LOCKING LEVER FOR QUICK AND PRECISE FIXING, WITH RATCHET FOR CONSTANT MEASURING PRESSURE, WITH ADJUSTING KEY, FROM UP 25 MM WITH SETTING GAUGE