{"product_id":"5-8-x-3-16-straight-shank-counterbore-1-2-round-shank-3-flute-hss_dewcbr5-8","title":"5\/8\" X 3\/16\" Straight Shank Counterbore | HSS | 1\/2\" Round Shank | 3 Flute | DEWCBR5\/8","description":"\u003cdiv\u003eIndustrial counterbore tool designed for precision hole enlargement and flat-bottom counterbored pockets in metalworking operations. This specification sheet presents geometry, shank options, flute configuration, and material grade to assist engineering selection and procurement. \u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCounterbore Diameter\u003c\/strong\u003e: 5\/8\"\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eShank Types\u003c\/strong\u003e: Straight Shank 3\/16\", Round Shank 1\/2\"\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFlutes\u003c\/strong\u003e: 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: HSS\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eShank Compatibility\u003c\/strong\u003e: Supports standard CNC spindle holders and drill press chucks with both straight and round shank configurations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-Flute Geometry\u003c\/strong\u003e: Optimizes material removal and chip clearance during counterboring operations, improving surface finish on flat-bottom pockets.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: HSS provides rigidity and hardness suitable for moderate to high cutting speeds in steel, cast iron, and alloy workpieces.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication Focus\u003c\/strong\u003e: Ideal for precision counterboring tasks that require accurate bore alignment and seating for fasteners in industrial assemblies.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Drill America","offers":[{"title":"Default Title","offer_id":53412334960919,"sku":"DEWCBR5\/8","price":32.22,"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\/5-8-x-3-16-straight-shank-counterbore-1-2-round-shank-3-flute-hss_dewcbr5-8","provider":"Mutual Screw \u0026 Supply","version":"1.0","type":"link"}