Redesigned indexable threadmill cutters from Seco Tools Inc.(www.secotools.com) accommodate indexable inserts 1.5-in. (40-mm) long and are double-sided to provide increased thread lengths. The complete range of threadmills is available in Seco's tough and wear-resistant grade F30M, a universal choice for all materials.

A new range of cutter bodies, including both single-tooth and multitooth styles, secure the inserts, accommodate a range of O.D. and I.D. thread-making operations. New shell-mill versions are available that can hold up to six inserts for more aggressive threading applications.