{"product_id":"39-64-x-3-16-straight-shank-counterbore-1-2-round-shank-3-flute-hss_dewcbr39-64","title":"39\/64\" X 3\/16\" Straight Shank Counterbore | HSS | 1\/2\" Round Shank | 3 Flute | DEWCBR39\/64","description":"\u003cdiv\u003eIndustrial-grade counterbore tooling designed for precision hole finishing in metalworking environments. Dual shank configurations provide compatibility with a range of holder systems used on CNC mills, lathes, and drill press setups. \u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eDimensions:\u003c\/b\u003e 39\/64\" x 3\/16\"\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eShank options:\u003c\/b\u003e Straight Shank; Round Shank (1\/2\" Round Shank)\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eMaterial Grade:\u003c\/b\u003e HSS\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003e3 Flute:\u003c\/b\u003e Cutting geometry optimized for efficient chip evacuation and consistent bore quality during counterboring operations.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e High-Speed Steel (HSS) for wear resistance and elevated temperature tolerance in metalworking environments.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eApplications:\u003c\/b\u003e Suitable for counterboring holes to seat fasteners in steel, aluminum, and other metals when used with appropriate spindle speed and feed rates.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eShank compatibility:\u003c\/b\u003e Supports multiple tool-holding systems with \u003cb\u003eStraight Shank\u003c\/b\u003e and \u003cb\u003eRound Shank\u003c\/b\u003e configurations; Round Shank specified as 1\/2\" diameter for compatible chucks and holders.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Drill America","offers":[{"title":"Default Title","offer_id":53412334928151,"sku":"DEWCBR39\/64","price":35.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/1125\/5063\/files\/4.jpg?v=1779454687","url":"https:\/\/mutualscrew.com\/products\/39-64-x-3-16-straight-shank-counterbore-1-2-round-shank-3-flute-hss_dewcbr39-64","provider":"Mutual Screw \u0026 Supply","version":"1.0","type":"link"}