{"product_id":"irwin-industrial-tool-co-1882630-countersink-wood-drill-bit","title":"Irwin Industrial Tool Co 1882630 Countersink Wood Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe IRWIN INDUSTRIAL TOOL CO 1882630 is a No. 4 countersink wood drill bit designed for driving wood screws cleanly and accurately into dimensional lumber, sheet goods, and trim materials. The tapered drill body features widened flutes that clear chips quickly, producing fast, clean pilot holes that ensure a tight screw fit. An adjustable four-cutter counterbore is secured to the shank flats with two hex screws, allowing the installer to set a controlled pilot hole depth and achieve smooth, consistent countersinking in a single pass. The 1\/4 inch quick-change shank reduces slipping in standard drill chucks and is compatible with all 1\/4 inch quick-change chuck systems, including impact drivers.\u003c\/p\u003e\n\u003cp\u003eThis bit is suited for residential and light commercial woodworking, cabinetry, decking, and finish carpentry applications where clean pilot holes and flush or recessed screw heads are required. The adjustable counterbore makes it practical for production runs where consistent screw depth is critical. Carpenters, finish contractors, and millwork installers will find the quick-change shank especially useful when switching frequently between drilling and driving operations. The package contains 6 units, making it a practical stock item for a working tool kit or van supply.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eTapered drill with widened flutes for fast chip clearing and clean pilot holes\u003c\/li\u003e\n  \u003cli\u003eAdjustable four-cutter counterbore allows controlled pilot hole depth settings\u003c\/li\u003e\n  \u003cli\u003eCounterbore secured to shank flats with two hex screws for a stable, non-slip fit\u003c\/li\u003e\n  \u003cli\u003e1\/4 inch quick-change shank compatible with standard and quick-change chucks, including impact drills\u003c\/li\u003e\n  \u003cli\u003eSized for No. 4 wood screws\u003c\/li\u003e\n  \u003cli\u003eSold in a package of 6 bits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eCompatible with all 1\/4 inch quick-change chuck systems, including impact drills. Designed as a No. 4 tapered countersink bit for use with No. 4 wood screws in standard woodworking and carpentry applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by carpenters and general contractors using a standard drill driver or impact driver equipped with a 1\/4 inch quick-change chuck. Before adjusting the counterbore depth collar or tightening the hex screws, ensure the drill is unpowered and the chuck is disengaged. Use the provided hex screws to lock the counterbore at the desired depth before beginning a production run, and verify the setting on scrap material first. Follow applicable safety practices for rotating cutting tools per manufacturer guidance and applicable worksite codes.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBit Size\u003c\/strong\u003e: No. 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Size\u003c\/strong\u003e: 1\/4 inch quick-change\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCounterbore Cutters\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCounterbore Attachment\u003c\/strong\u003e: 2 hex screws on shank flats\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 6\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.42 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: EA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: IRWIN INDUSTRIAL TOOL CO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1882630\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IRWIN","offers":[{"title":"Default Title","offer_id":51559531479346,"sku":"1882630","price":98.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/48f6cf59cca136e43b89060b81f930d2.jpg?v=1786434683","url":"https:\/\/voomisupply.com\/products\/irwin-industrial-tool-co-1882630-countersink-wood-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}