Original Stanley 1-11-301,18mm segmented snap off blades, Box of 100 pieces, lightly oiled and supplied in protective plastic tubes to fit the Stanley Interlock, Stanley FatMax, Delphin 2004 and all other types of retractable snap off handles. One of the worlds most famous brands so buy with total confidence.Manufactured in hardened and tempered carbon steel, these are razor sharp top quality blades and are used in roofing, flooring, warehousing, packaging, hobby, graphic arts and crafts.