As an Amazon Associate, we earn from qualifying purchases. Cat50 end mill holder 5/16? x 4.00? Sowa Tools . 522-112 Attributes Brand name, Manufacturer name, ManufacturerSowa Tools Attribute00Certified balanced to 25,000 rpm Attribute010.87? Attribute025/16? Attribute03CAT50 Attribute04101.60 Attribute054.000 Attribute06No Attribute07Yes AttributeKey00balanced AttributeKey01projection diameter AttributeKey02hole diameter AttributeKey03taper AttributeKey04gauge length mm AttributeKey05gauge length inch AttributeKey06dual contact AttributeKey07coolant InStockStringTrue Extra Product NameCat50 end mill holder 5/16? x 4.00? moq, multiple, tierMinQty11 MPN, SKU522-112 qtyInStock-2 qtySourceInStockString tierPrice1171.65 Distributor offers SellerSKUMOQIn stockMultiplePrices tmttoolbox.com522-1121-211 @ $171.65