As an Amazon Associate, we earn from qualifying purchases. Bt40 end mill holder 1/2? x 2.50? Sowa Tools . 522-264 Attributes Brand name, Manufacturer name, ManufacturerSowa Tools Attribute00Certified balanced to 30,000 rpm Attribute011.38? Attribute021/2? Attribute03BT40 Attribute0463.50 Attribute052.500 Attribute06No Attribute073 coolant options: throught the flange, through the spindle, through the body. Comes with O-ring seal for non-direct coolant operations AttributeKey00balanced AttributeKey01projection diameter AttributeKey02hole diameter AttributeKey03taper AttributeKey04gauge length mm AttributeKey05gauge length inch AttributeKey06dual contact AttributeKey07specification InStockStringTrue Extra Product NameBt40 end mill holder 1/2? x 2.50? moq, multiple, tierMinQty11 MPN, SKU522-264 qtyInStock-2 qtySourceInStockString tierPrice1149.38 Distributor offers SellerSKUMOQIn stockMultiplePrices tmttoolbox.com522-2641-211 @ $149.38