Two multi-tooth shell-mill-style indexable-insert threadmills from Seco-Carboloy, Warren, Mich., reportedly have high rigidity for stability, especially in long-reach applications. They also have high cutting speeds and feeds and achieve full-depth threads in single passes on large I.D. and O.D. applications.
A single-insert indexable threadmill produces 19 different thread forms in I.D. holes as small as 0.500 in. in diameter. All three threadmills are through-coolant capabile for improved chip evacuation and consistent thread quality.
Also, the 1.5-in. (40 mm) long inserts feature two cutting edges, including NPT, in grade F30M for long tool life in all workpiece materials. Cutter bodies feature the Seco Weldon shank for rigidity in demanding applications, and all back ends are available in both inch and metric sizes.