About this item UPGRADE TO 22 FITTINGS: ① 2 x 3/16" (3/8-24) Threads Unions; ② 2 x 3/16"(9/16-18) Inverted Tube Nut; ③ 2 x 3/16” (1/2-20) Inverted Tube Nut; ④ 2 x 3/16” (7/16-24) Inverted Tube Nut; ⑤ 14 x 3/16" (3/8-24) Inverted Tube Nut. Premium Material: Our zinc-coated brake line is made of alloy steel to prevent oxidation. All brake pipe fittings are made of anti-rust brass, which has a long service life. Make Single Flare: Brake line tools are designed for flaring single flare, suitable for various sizes of pipes, including 3/16, 1/4, 5/16, 3/8, 1/2, and 5/8 inch. .
