The lathe tools are made from quality Cobalt HSS, pre-ground. Packed in wooden boxes with sliding lid. Milling cutter set 15/64" - 13/32" (6 - 10 mm) HSS, consists of cutters Ø 15/64", 9/32", 5/16" and 13/32" (6, 7, 8 and 10 mm). Four flute design. Supplied in wooden box.