The master lock 1175d pro series brass 4 digit padlock is made from high quality solid brass for superior corrosion resistance with an octagonal boron carbide shackle for ultimate cut resistance the resettable 4 digit lock has the possibility of over 10000 combinations and the deadlocking mechanism protects against prying shimming and rap attacks the combination dials are extremely easy to use thanks to master locks unique blind system theyre easy to turn even when youre using gloves or when lig