Does this work universally? Meaning on all handcuffs ( not kinky stuff ) like real military grade. Teaching a class about mechanism and locks thanks.

Will work in about 90% of all real police grade cuffs out there....

Yes. They seem to be stainless steel.

What are the dimensions of these keys? I work with thousandths of an inch if that works for you. Thanks

S&W Hand cuff key Total Length= 1.807 Reset tip= .234 tip dia.= .068 x .086 , flat sided Outside Dia.= .145 Inside Dia. = .105 hole depth= .438 from edge of bow to tip of key= .96 Tab Length= .139 thick= .037 width= .073

Does this key work on the older s&w model m90?

I am not sure what model, but I bought these to work in my father's old handcuffs from the 60's and they worked perfectly. I would order them and give them a try!

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2 Authentic Smith & Wesson Handcuff Key for unisex adultS&W Models 100, 300, 1850, 1900 with Key Ring

Product ID: 311924218

₩47991

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2 Authentic Smith & Wesson Handcuff Key for unisex adultS&W Models 100, 300, 1850, 1900 with Key Ring

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