{"product_id":"dewalt-7-8-in-bi-metal-hole-saw","title":"DEWALT 7\/8 in. Bi-Metal Hole Saw","description":"\u003cdiv\u003e\n\u003cp\u003eThe DEWALT 7\/8 in. Bi-Metal Hole Saw is built for reliable, precise perforations where durability matters. With a 7\/8\" diameter and a cutting depth of 1.75 inches, this hole saw covers the common hole sizes you need for electrical, plumbing, and general fabrication work, without constant tool changes.\u003c\/p\u003e \u003ch3\u003eKey details you can count on\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 7\/8 in\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCutting depth:\u003c\/strong\u003e 1.75 in\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Bi-Metal\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e DeWalt\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePackage contents:\u003c\/strong\u003e 1 piece\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eArbor included:\u003c\/strong\u003e No (requires a compatible arbor, not included)\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy bi-metal matters for your projects\u003c\/h3\u003e\n\u003cp\u003eBi-metal construction combines a tough steel body with hardened teeth, delivering longer life and resilient performance across tougher materials. The design tolerates heat and wear better than traditional single-material hole saws, helping you maintain clean, round holes even after sustained use.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eElectrical work: create clean pass-throughs in metal studs, thin-gold steel conduit blocks, or metal enclosures.\u003c\/li\u003e \u003cli\u003eMetalworking and fabrication: drill through aluminum and mild steel with reduced tooth wear and smoother cut edges.\u003c\/li\u003e \u003cli\u003eDIY and carpentry where metal or composite materials are involved, or when deeper holes are required in a single pass.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eHow to use\u003c\/h3\u003e\n\u003col\u003e \u003cli\u003eMount the hole saw on a drill using a compatible arbor (not included) and ensure the bit is securely fastened.\u003c\/li\u003e \u003cli\u003eMark the center of your hole and align the drill perpendicular to the workpiece for a true round hole.\u003c\/li\u003e \u003cli\u003eOperate at a steady, moderate speed and apply even pressure—let the teeth do the cutting to avoid binding.\u003c\/li\u003e \u003cli\u003eCut to the full depth of 1.75 inches, periodically clearing chips to maintain cutting efficiency.\u003c\/li\u003e\n\u003c\/ol\u003e \u003ch3\u003ePractical tips for best results\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eLubricate the cut when drilling through metal to reduce heat buildup and extend blade life.\u003c\/li\u003e \u003cli\u003eStart with a pilot hole if your setup includes one; this helps prevent wander on thicker materials.\u003c\/li\u003e \u003cli\u003eFor clean edges, deburr the hole after cutting and remove any burrs or sharp edges with a deburring tool.\u003c\/li\u003e \u003cli\u003eStore in a dry place to protect the bi-metal teeth from corrosion and maintain performance over time.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cem\u003eNote: Sale of this product on third-party online marketplaces is prohibited.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Dewalt","offers":[{"title":"Default Title","offer_id":52272854696210,"sku":"2032062","price":9.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0928\/1024\/8466\/files\/2032062_A.eps_High.jpg?v=1778782984","url":"https:\/\/nationalhardwaregroup.com\/products\/dewalt-7-8-in-bi-metal-hole-saw","provider":"National Hardware Group","version":"1.0","type":"link"}