Sold as 4 UNITS at $6.26 per unit. (1 unit = each.) 1-1/4" dia. x 1/16" thick. Use with mandrel 402 (SKU # 23892). Cut-off, groove & trim metals, woods & ceramics. Carded. Manufacturer number: 540. SKU #: 2104644. Country of origin: Taiwan. Distributed by Dremel Mfg Co.