Upset Punch – Thin-Wall – 101778 Series – 300 | 0.1875 TOD

Built to mate with its corresponding die, this Thin-Wall Upset Punch forms the upset or double-flare shape in 3/16″ (0.188″ decimal) tube, roughly .022 or less wall thickness,. Getting this step right sets up the tube wall so the finished flare has enough material to seal properly. It is a common wear item in tube end forming tooling kits and is worth replacing at the first sign of galling or rounded edges. It is part of the 101778 series; compatible with DF tube end forming machines, and is a good fit for shops standardizing their tube end forming tooling.