ST440: Dual Hinged 4 Blade Four blades and dual-hinged outer frame arms immediately make the Nomad ST440 tree spade stand out. The wide blade position gives the operator a comfortable and clear view of the spading action, which is incredibly important when transplanting evergreen trees and minimizing damage to the lower branches. To avoid any unnecessary damage or trauma to the tree, the dual tree hugger hinged frame arms allow the operator to take extra care while positioning the skid steer mounted tree spade. The ST440’s spades are made of 1/4" high alloy steel that hardens with use for reliable digging and compacting performance. Baumalight ST440 4" Evergreen 3" Hardwood Wheeled Skidsteer - 7000 lbs Tracked Skidsteer - 6500 lbs Wheel Loader - 6000 lbs Min. 3PH - 6000 lbs Min. Tractor Loader - 7800 lbs Min. Backhoe - 6000 lbs Telehandler - 6000 lbs