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Lock In Tool

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While on the subject of wristpins, take a look at this super-simple new tool we found online. It's called the Lock-In-Tool, and it's designed to make an unpleasant job much simpler. Spiral pin locks and wire pin locks commonly used on piston wristpins are notorious for being extremely difficult to install. The Lock-In-Tool makes installing these locks a breeze. Take a look at how you reverse-thread the wire pin on the tool.