{"product_id":"bsc-preferred-qjdib-db-029a-black-oxide-drill-bit-21-64","title":"Bsc Preferred QJDIB-DB-029A Black Oxide Drill Bit 21\/64","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe BSC PREFERRED QJDIB-DB-029A is a 21\/64-inch black oxide drill bit precision-ground from high-speed steel for general-purpose drilling across a range of materials. The 135-degree split point eliminates bit walking, allowing accurate hole placement without center-punching. A corrosion-resistant black oxide finish extends service life in shop and field environments. The reinforced core resists breakage under lateral load, making this bit a reliable choice for electricians, plumbers, HVAC techs, and general contractors who drill frequently into metal, wood, and plastic on the job.\u003c\/p\u003e\u003cp\u003eThis drill bit is suited for drilling angle iron, structural steel, wood framing, and PVC pipe or conduit. Its 21\/64-inch diameter makes it a common size for bolt clearance holes and pilot applications in light fabrication and trade work. The high-speed steel construction handles intermittent use in hand drills and drill presses without rapid edge degradation.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e135-degree split point prevents walking for accurate, no-punch starts\u003c\/li\u003e\n\u003cli\u003eBlack oxide finish provides corrosion resistance in humid or outdoor environments\u003c\/li\u003e\n\u003cli\u003ePrecision-ground high-speed steel maintains a sharp cutting edge longer than standard carbon steel\u003c\/li\u003e\n\u003cli\u003eReinforced core geometry resists breakage under lateral stress\u003c\/li\u003e\n\u003cli\u003eSuitable for metal, wood, angle iron, and PVC applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose replacement or stock drill bit compatible with standard 3-jaw drill chucks accepting 21\/64-inch shank sizes, including hand drills and bench drill presses common in trade and light industrial use.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by licensed tradespeople or experienced technicians using a standard drill or drill press. Always secure the workpiece before drilling and use appropriate cutting fluid when drilling ferrous metal to extend bit life. Wear eye protection at all times. Inspect the cutting edge before each use and replace if chipped or dull to prevent workpiece damage or bit failure.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 21\/64 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Angle\u003c\/strong\u003e: 135 degrees split point\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High-speed steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Black oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 0.07 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Each\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: BSC PREFERRED\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: QJDIB-DB-029A\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BSC PREFERRED","offers":[{"title":"Default Title","offer_id":51696396271922,"sku":"QJDIB-DB-029A","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/05218942b7727d0cfb241c0cb62f983d.jpg?v=1788342194","url":"https:\/\/voomisupply.com\/products\/bsc-preferred-qjdib-db-029a-black-oxide-drill-bit-21-64","provider":"Voomi Supply","version":"1.0","type":"link"}