The Original Dynafile® Abrasive Belt Machine, 24 in L x 1 8 in to 1 2 in W Belts, 1 2 hp ORS NASCO inorganic chemicals (even under pressure) inorganic chemicals (even under pressure) with the strength and durability of Tyvek® thanks to an innovative fabric technology and enhanced garment design Developed to our highest standards Black oxide spindle resists wear and tear while impeding rust Drop forged arm provides minimal flex under heavy work loads Swivel pad centers on work piece for a sturdy hold Sturdy tommy bar is engineered for durability and comfort Belt housing has larger opening for belt tracking and operation Composite belt guard for easy quick changing of abrasive belts Motor adjusts easily for the most comfortable throttle lever position Lightweight glass and stone