{"product_id":"precision-twist-drill-5996150-screw-machine-drill-bit-55","title":"Precision Twist Drill 5996150 Screw Machine Drill Bit 55","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PRECISION TWIST DRILL 5996150 is a screw machine length cobalt drill bit designed for drilling into hard and demanding workpiece materials. Built to ANSI standards from M41 cobalt high-speed steel, this bit delivers the heat resistance and edge retention needed in production and maintenance drilling environments. It features a 135-degree split point that reduces walking and minimizes the need for a center punch, making it well suited for fast, repeatable hole placement. The straight-cylindrical shank is sized at 0.0520 inches in diameter, and the overall length measures 1.625 inches, making this bit compatible with standard drill chucks used across machining and field applications.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is intended for use in screw machine length applications where a shorter, more rigid bit reduces deflection and improves accuracy in tight-tolerance drilling. The cobalt M41 construction makes it appropriate for cutting hard materials including stainless steel, cast iron, titanium alloys, and other high-strength metals. Its 5\/8-inch flute length provides adequate chip evacuation for the short-hole depths typical of screw machine work. Machinists, tool-and-die technicians, and field service professionals in fabrication and maintenance environments are the primary users of this type of bit.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eWire size 55 with 0.0520-inch diameter for precision small-hole drilling\u003c\/li\u003e\n  \u003cli\u003eM41 cobalt high-speed steel construction for high-heat and heavy-duty cutting performance\u003c\/li\u003e\n  \u003cli\u003e135-degree web-thinned split point reduces thrust and eliminates center-punch dependency\u003c\/li\u003e\n  \u003cli\u003eScrew machine length (1.625 inches OAL) provides rigidity and reduces bit deflection\u003c\/li\u003e\n  \u003cli\u003eRight-hand spiral flute with 2.5xD flute-to-diameter ratio for efficient chip removal\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank fits standard drill chucks without adapters\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI specifications for dimensional accuracy and performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in standard drill chucks accepting a 0.0520-inch straight-cylindrical shank. Suitable for screw machine, CNC, and handheld drilling setups where wire size 55 screw machine length bits are specified. Intended for use in hard workpiece materials as classified in the M41CO series application guidelines.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis bit is installed and serviced by machinists, toolroom technicians, or maintenance professionals familiar with small-diameter drill bit handling. Secure the shank fully in the drill chuck and verify concentricity before engaging the workpiece. When drilling hard materials, use appropriate cutting fluid or coolant to extend tool life, even though this bit does not have through-coolant capability. Avoid excessive feed pressure on small-diameter bits, as side loading increases the risk of breakage.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: 55\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.0520 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Cobalt (M41 High-Speed Steel)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 135 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.625 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 0.625 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.0520 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 2.5xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Hard Material\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: M41CO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ANSI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.04 pounds\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: PRECISION TWIST DRILL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5996150\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51709493150002,"sku":"5996150","price":54.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/aa2be07eba6984ccd5f161f94448d961_4698df02-9008-437d-baa2-534d07ff456c.jpg?v=1788457132","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5996150-screw-machine-drill-bit-55","provider":"Voomi Supply","version":"1.0","type":"link"}