80PCS straight& 90°grease fitting zerks are made of alloy steel zinc nickel plated. 2 set Heavy-Duty alloy steel galvanize multi grease fitting tools One fits for 1/8"-NPT PTF grease zerk fittings, M10x1 and Grease Zerk fittings with hex size 3/8" (9.5mm) & 7/16" (11mm).
