ASP Handcuff Keys are designed to withstand the rigors of long term duty use. Conventional keys are stamped from mild steel. They often break or twist off in a handcuff. These "key jammed" restraints create civil liability. Each ASP key is hammer forged, then precision machined. Keys are heat treated for strength and coated with a protective finish. The unique ASP BackSet feature allows rapid location of the handcuff keyway. Clip keys provide an extended reach and convenient pocket clip. IMPORTANT: The High Security version of this key is designed specifically for ASP High Security Handcuffs, and may also operate 2-pawl security restraints from other manufacturers. The key is also designed to work with standard single-pawl handcuffs. However, ASP cannot guarantee functionality or compatibility with other manufacturer&&';;s handcuffs; it is the user&&';;s responsibility to test and ensure functionality with other intended restraint systems. Sell Sheet (pdf) ASP Training Room - Handcuff Keys https://youtu.be/cXcp0-vlnsI