The American Lock No. A748 Solid Steel Shrouded Padlock features a 2-1/2in (64mm) wide solid steel body and a 15/16in (24mm) tall, 7/16in (11mm) diameter shrouded boron alloy steel shackle for superior cut/saw resistance. Dual ball bearing locking mechanism resists pulling and prying and stainless steel cylinder pins provide increased drill resistance.