Drilling Tapping Size Chart. Below is a comprehensive drill and tap size chart for all drills and taps, imperial and metric, up to 36.5 millimetres in diameter. They accept male screws to facilitate the building and fastening of a finished assembly.

Npt tap & die chart imperial has made a concerted effort to provide accurate information in its catalog and on its web site, however imperial assumes no. In manufactured parts, holes with female screw threads are often needed; Drill size decimal drill size decimal drill size decimal drill size decimal #0