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.strong bearing capacity, not easy to break and deformation characteristics Easy to use: With specialized technology, the brake pipe has perfect flexibility, easy to bend and spread, reaming tool with flat indenter, reinforced double-layer flap reaming, stronger flare .
