As an Amazon Associate, we earn from qualifying purchases. Cat40 end mill holder 3/8? x 1.38? Sowa Tools . 531-012 Attributes Brand name, Manufacturer name, ManufacturerSowa Tools Attribute00Certified balanced to 30,000 rpm Attribute011.00? Attribute023/8? Attribute03CAT40 Attribute0435.05 Attribute051.380 Attribute06No Attribute07Yes AttributeKey00balanced AttributeKey01projection diameter AttributeKey02hole diameter AttributeKey03taper AttributeKey04gauge length mm AttributeKey05gauge length inch AttributeKey06dual contact AttributeKey07coolant InStockStringTrue Extra Product NameCat40 end mill holder 3/8? x 1.38? moq, multiple, tierMinQty11 MPN, SKU531-012 qtyInStock-2 qtySourceInStockString tierPrice186.47 Distributor offers SellerSKUMOQIn stockMultiplePrices tmttoolbox.com531-0121-211 @ $86.47