This key is used to unlock metal police handcuffs ESP type HM-01 (chain) and HM-03 (articulated). However, thanks to the standard shape, you can also use it with other handcuffs from different brands.
It is completely made of stainless steel, which increases its mechanical resistance. The tip at the end of the key is used for double locking of the handcuffs (securing the jaws against movement in both directions).
