Heavy duty steel construction with zinc plate finish. 620mm length with increased leverage and maneuverability. Heavy Duty Long Reach D pattern manhole key that fits most standard domestic manhole covers. Rothenberger Heavy Duty D Handle Manhole Key 620mm Steel. Rothenberger D pattern heavy duty manhole lifting key. Both strong and durable with a lifting capacity of up to 30 kg, the key has an extended 520mm handle for additional leverage especially with heavier capacity manholes. It has a zinc plated finish for resistance to corrosion.