For adjusting Idle/mixture screws on GM and Chrysler Carburetors.
Heavy-duty flexible shaft for easy access.
Tool is zinc plated to resist rust.
NOTE: Be sure fluted end of filter matches wrench.
Four adapters conveniently store in the comfortable handle.
Double "D" for GM, '79 through present
4.5mm Hex for '78 and '79 GM
1/4" Hex for pre-'78 GM
3/32" Hex for '78 through present Chrysler, 1.7L-2.2L engines.