Kent-Moore J-1205 Brake Main Cylinder Nut Wrench (1 3/8" Nut)
Using this special wrench prevents damage to the finely serrated head of the brake main cylinder nut, and makes an easy job of removing, replacing and properly tightening the nut. The serrated head of the hydraulic brake main cylinder nut is easily tightened and loosened with this wrench. The fine serrations in the wrench fit the head exactly, permitting the nut to be turned without damage. Weight 2 lbs.