{"product_id":"47-64-reduced-shank-hss-drill-bit-1-2-3-flat-shank-d-a3f-series_d-a3f47-64","title":"47\/64\" Reduced Shank Drill Bit | HSS | 1\/2\" 3-Flat Shank | D\/A3F47\/64","description":"\u003cdiv\u003e\n\u003cp\u003eThis technical description covers the 1 PC 47\/64\" Reduced Shank HSS Drill Bit, 1\/2\" cutting diameter with a 3-Flat D\/A3F shank. Designed to deliver reliable metalworking performance, it combines a standard 1\/2\" hole size with a reduced shank to fit larger-bore toolholders while maintaining rigidity and control during drilling. Constructed from high-speed steel, this uncoated bit is intended for general-purpose drilling on common metals with appropriate speeds and feeds.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eCutting diameter: 1\/2\" (0.500 in)\u003c\/li\u003e \u003cli\u003eShank diameter (reduced): 47\/64\" (0.734 in)\u003c\/li\u003e \u003cli\u003eShank type: 3-Flat (D\/A3F Series)\u003c\/li\u003e \u003cli\u003eMaterial: High-Speed Steel (HSS)\u003c\/li\u003e \u003cli\u003eDesign: Reduced-shank drill bit\u003c\/li\u003e \u003cli\u003eQuantity: 1 piece\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eReduced shank design enables use in larger-bore holders while preserving a 1\/2\" cutting diameter, simplifying tool setup in metalworking workflows.\u003c\/li\u003e \u003cli\u003e3-flat D\/A3F shank provides a secure grip and improved torque transfer between bit and holder or chuck, enhancing stability during entry and exit.\u003c\/li\u003e \u003cli\u003eHSS construction supports general-purpose drilling for common metals with appropriate speeds and feeds.\u003c\/li\u003e \u003cli\u003eUncoated substrate compatible with standard maintenance practices and potential re-sharpening where permitted.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003ePhysical\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eOverall design: 1\/2\" cutting diameter with a 47\/64\" reduced shank\u003c\/li\u003e \u003cli\u003eShank: 3-flat (D\/A3F Series)\u003c\/li\u003e \u003cli\u003eCoating: None specified\u003c\/li\u003e \u003cli\u003eWeight: Not provided\u003c\/li\u003e \u003cli\u003eTotal length: Not provided\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Drill America","offers":[{"title":"Default Title","offer_id":52312665620759,"sku":"D\/A3F47\/64","price":19.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/1125\/5063\/files\/d-a3f33-64_3a871db2-98eb-446e-845f-c697734bdb31.jpg?v=1771714393","url":"https:\/\/mutualscrew.com\/products\/47-64-reduced-shank-hss-drill-bit-1-2-3-flat-shank-d-a3f-series_d-a3f47-64","provider":"Mutual Screw \u0026 Supply","version":"1.0","type":"link"}