A handcuff key “universal” shank and paddle for a common handcuff is attached, in-line, with an enlarged shank extension and bow or grip of a size and shape allowing its use while wearing heavy gloves. The shank extension is sufficiently long to accommodate heavily gloved fingers between the bow or grip and the universal shank and paddle. The enlarged bow or grip of the key is generally circular to fit the palm of a heavily gloved hand, and having a variety of apertures for key rings. The enlarged shank extension defines concave finger-holds for the gloved index and middle finger. The extended shank extends outward from the hand, while the heel of the glove hand engages the rounded rear surface of the bow or grip. The double-lock engaging stem is radially mounted about 60 degrees from the centerline. The key with extended shank is reversed for double-locking.