An industry first, Pepetools is proud to release the all new high speed steel blade used for the Jump Ring Making System. TiN (Titanium Nitride) coating for long blade life Hardened and ground high speed steel; .008" (.2mm) thick blade for thin, clean cuts; 1.5" Diameter; 140 teeth; For best use, combine with PepeLube #307.50; For use with the Jump Ring Maker 2 #307.70A; Also available in standard 1.25" #307.20G;