Commercial grade padlock features superior protection from drilling and prying. The 4 pin cylinder prevents picking and the dual locking ball bearings provide resistance against prying and hammering making it ideal for industrial applications. The Master Lock Laminated Steel Padlocks, keyed alike multiple locks open with the same key feature as 1-9/16 in reinforced laminated steel lock body providing extra strength and a hardened steel shackle for excellent cut resistance.