Solid Carbide Drills 1)ISO2658 Machine and Hand Round Thread Dies High Speed Steel or Alloy Tool Steel Metrical and UNC/UNF, BSW/BSF 2)ISO 4230R 3)ISO 4231 cutting tools:HSS drill bit,tap,die,annular cutter,bi-metal hoesaw ,combined drill&countersink,diamond saw blade,masonry drill.SDS hammer drill,wood working drill etc. If you are interested in any of our products relevant to hardware tools, feel free to contact us. We look forward to get you and will guarantee you the best commodity and the best service.