Semi-Elliptical Design, built with Super High Strength / Abrasion Resistant AR Steel. Made to handle your toughest jobs. Demolition, concrete slabs, large rocks, and boulders. This body is capable of handling it. Available in the standard heavy duty 1/4” version, or our 3/16” still heavy duty “Lite” version. Elliptical design for easy cleanout with less material hang-up.