The Master Lock No. 7052 ProSeries® Shrouded Padlock features a 2in (51mm) heavy hardened steel body with chrome rustproofing and a 1-1/2in (38mm) tall, 3/8in (9mm) diameter hardened boron alloy shackle for superior cut resistance. Padlock is available with our without cylinder to key at your facility with a choice of 22 Key-in-Knob keyways to match this padlock to your security door locks.