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Klein Tools 3010CR Solar Ratcheting Crimper for MC4 Connectors
Klein Tools 3010CR Solar Ratcheting Crimper for MC4 Connectors is aimed at DIYers and homeowners looking for a tool with a clear job to do.
Why it caught our attention
Check current price on Amazon The Klein Tools 3010CR is a compact ratcheting crimper built for MC4 solar connector contacts. Its stepped dies handle 14, 12 and 10 AWG, and the ratchet holds pressure until a full cycle completes, with a release lever if you need to back out. Dual-material grips keep the 8.9-inch tool comfortable for a run of panel leads.
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Find reviewed: October 14, 2026