For adjusting idle/Mixture screws on GM and Chrysler. Heavy-duty flexible shaft for easy access. Four adapters conveniently store in the comfortable handle.
2180A 4.5mm hex for 78 and 79 GM
2180B 1/4" hex for pre-78 GM
2180C 3/32" hex for 78 thru present Chrysler,
1.7L-2.2L engines.
2180D Double "D" for GM 79 thru present.