{"product_id":"precision-twist-drill-040820-hss-stub-drill-5-16-in","title":"Precision Twist Drill 040820 Hss Stub Drill 5\/16 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PRECISION TWIST DRILL 040820 is a high-speed steel (HSS) stub-length drill bit designed for heavy-duty boring applications where rigidity and accuracy are the priority. With a 5\/16-inch tip diameter and a 2.5-inch depth of cut, this drill bit operates at a total length of 2-13\/16 inches. The shortened flute and overall stub geometry reduce deflection and chatter, giving drilling operations tighter tolerances than standard-length bits. It is suited for machinists, maintenance technicians, and tradespeople who need a dependable, rigid bit for demanding metal-drilling work.\u003c\/p\u003e\u003cp\u003eThe 040820 is used in applications where a standard jobber-length drill would be prone to flexing or walking, such as drilling into plate steel, structural members, or hard stock in confined spaces. The stub format keeps the bit close to the chuck, maximizing stiffness throughout the cut. This makes it a practical choice for drill press work, CNC setups, and hand-drill use in metal fabrication or maintenance environments where hole placement accuracy matters.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eStub-length design reduces bit flex and increases drilling accuracy\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel (HSS) construction handles hard metals and repeated use\u003c\/li\u003e\n\u003cli\u003e5\/16-inch diameter tip for standard fastener and passage-hole sizing\u003c\/li\u003e\n\u003cli\u003e2.5-inch depth of cut accommodates typical plate and structural stock thicknesses\u003c\/li\u003e\n\u003cli\u003eCompact 2-13\/16-inch overall length fits tight clearances and short-throat chucks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style stub drill replacement compatible with standard 3-jaw drill chucks and collet systems accepting 5\/16-inch shank tooling across drill presses, hand drills, and CNC drilling applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use should be performed by qualified machinists or tradespeople familiar with rotating cutting tools. Always secure the workpiece before drilling and confirm the chuck is properly tightened before operation. Use appropriate cutting fluid for metal applications to extend bit life and improve cut quality. Inspect the cutting edges for wear or chipping before each use and replace the bit if damage is observed.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTip Diameter\u003c\/strong\u003e: 5\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of Cut\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-13\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High-Speed Steel (HSS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Type\u003c\/strong\u003e: Stub Length\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.3 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 086071408204\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: PRECISION TWIST DRILL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 040820\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51343091368242,"sku":"040820","price":36.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310538477.jpg?v=1782016338","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-040820-hss-stub-drill-5-16-in","provider":"Voomi Supply","version":"1.0","type":"link"}