Switch hard use specification grade features one-piece brass alloy contact arm for reliable electrical performance. One-piece steel strap with integral ground is plated for corrosion resistance. Heavy-duty toggle bumpers for smooth and quiet operation. Locking support provides resistance to face and back body separation. Cam designed for fast make with positive break action to minimize arcing and prolong switch life. Oversized silver alloy contacts for longer dependable switch life. Tri-drive terminal and mounting screws.