The lathe tools are made from quality Cobalt HSS, pre-ground. Packed in wooden boxes with sliding lid. Three piece thread cutting set: 15/64" x 5/16" x 3 9/64" (6 x 8 x 80), for the PD 230/E. One cutter for external thread (ground to 60°, metric) one for internal thread, one general cutting. Supplied in wooden box. Proxxon tools come with a 2 year factory warranty.