For Adjusting Idle / Mixture Screws on GM and Chrysler. Heavy-duty flexible shaft for easy access.
55300 \"Double D\" for GM, '79 through present
55310 1/4\" hex for pre-'78 GM
55320 3/32\" Hex for '78 -present Chrysler 1.7L - 2.2L engines
55330 4.5mm Hex for '78 and '79 GM
55340 \"O\" Ring Replacement
*Total length- 15 1/2\" long
*1/4\" drive
*We do not offer a 3/8\" drive
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