One MK Diamond Products 6" saw blade, MK-297 Criterion, part #109421. Listed retail for $65.00 but receive a discount of 20% at the SHOPPING CART. The Criterion is a premium grade, notched rim blade for lapidary materials. Blade diameter 6" (152mm), width .025, arbor 5/8". FOB Torrance, CA or Powell, WY. Made in the U.S.A.