{"product_id":"irwin-marples-1-5-8-in-x-4-in-l-carbon-steel-forstner-drill-bit-round-shank","title":"Irwin Marples 1-5\/8 in. X 4 in. L Carbon Steel Forstner Drill Bit Round Shank","description":"\u003cdiv\u003e\n\u003cp\u003eThe Irwin Marples 1-5\/8 in x 4 in Carbon Steel Forstner Drill Bit with Round Shank is purpose-built for woodworkers who demand precise, clean holes. This dedicated Forstner bit delivers flat-bottom recesses and crisp edges, making it ideal for cabinetry, furniture construction, and detailed joinery where accuracy matters.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eDiameter \/ drill size:\u003c\/strong\u003e 1-5\/8 in\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOverall length:\u003c\/strong\u003e 4 in\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eShank diameter:\u003c\/strong\u003e 3\/8 in\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eShank type:\u003c\/strong\u003e Round\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Carbon steel\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Boxed, 1 piece\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Irwin (Marples)\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhat sets this bit apart is its ability to produce controlled, high-clarity holes that are ready for hinges, dowels, or cable routing without excessive tear-out. The 4-inch overall length provides reach for deeper stock or through-work, while the round 3\/8-inch shank ensures compatibility with standard drill chucks for stable, confident operation.\u003c\/p\u003e \u003cp\u003eIdeal use scenarios include hinge mortises in cabinet doors, large-diameter bore passes for hardware installation, and precise dowel or bore work in both hardwoods and softwoods. Whether you’re upgrading a professional workshop or tackling a home project, this Forstner bit from the Marples line offers dependable performance when accuracy is non-negotiable.\u003c\/p\u003e \u003cp\u003ePractical tips for best results: secure your workpiece, use steady feed with moderate speed, and periodically clear chips to maintain clean cuts and extend bit life. With proper care, this carbon steel bit remains a reliable workhorse in your drilling toolkit for years to come.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Irwin","offers":[{"title":"Default Title","offer_id":52169064251666,"sku":"23430","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0928\/1024\/8466\/files\/23430_A.eps_High.jpg?v=1775414687","url":"https:\/\/nationalhardwaregroup.com\/products\/irwin-marples-1-5-8-in-x-4-in-l-carbon-steel-forstner-drill-bit-round-shank","provider":"National Hardware Group","version":"1.0","type":"link"}