Insulated 35Mm King Sumo FibreGlass Spade, 69in was developed to withstand the superior forces applied to long shafted digging tools. The SUMO spade has been designed and tested to withstand load forces up to 250kg when tested on a BS3388 testing rig. This is the strongest spade Carters have ever made, strong enough to take the weight of an average Sumo wrestler. Individually tested to the exacting specifications of BS8020:2012, Tools for live working.