RiveryMFG
Small Spring Replacement
Small Spring Replacement
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Give your Zero and Zero-G the snap it had on day one. This OEM-spec small replacement spring is precision-made to match the factory tension and fit of your knife's original pivot spring. If deployment has started to feel sluggish or inconsistent, this direct-fit replacement brings back that smooth, confident action.
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The Zero Utility Knife
Born in Sevierville, Tennessee, the Zero Utility Knife embodies American craftsmanship and mechanical ingenuity. Designed by engineer Michael Sayers of Rivery Manufacturing, it reimagines the everyday utility knife with a seamless, screwless body and an addictive slide mechanism that feels like pure precision at work. Crafted in the USA with uncompromising attention to detail, the Zero Utility Knife is where innovation meets design.