1-3/8" Cast Iron Sphere Cutter Cups

THIS IS A DROP SHIPPED OR SPECIAL ORDER ITEM. PLEASE CONTACT OR LEAVE A NOTE IN THE COMMENTS BOX REQUESTING ESTIMATED WAIT TIME FOR SHIPPING 1-3/8" Cups set of three. Covington's Cast Iron Cutter Cups are designed to provide maximum grinding surface contact while allowing for imperfections in the performed spheres. The soft cast iron material allows the grit to embed itself in the cutter cup, promoting a faster grind. These high quality cups are preferred and used by many lapidary and glass artists. 3/4" National Pipe Thread.