{"product_id":"precision-twist-drill-5999518-taper-shank-drill-bit-4mt","title":"Precision Twist Drill 5999518 Taper Shank Drill Bit 4MT","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PRECISION TWIST DRILL 5999518 is a taper shank drill bit designed for heavy-duty drilling in metal, steel, and similar materials. It carries a 1.1563-inch (1-5\/32 inch) cutting diameter and mounts via a 4MT (Morse Taper No. 4) shank, making it compatible with drill presses, lathes, and milling machines equipped with a matching taper socket. The overall length is 12.875 inches with a 7.25-inch spiral flute. Manufactured from high speed steel with an oxide finish, it delivers consistent performance across general-purpose metal drilling applications. The 118-degree standard point with web thinning reduces entry force and helps the bit start accurately without a center punch on flat stock.\u003c\/p\u003e\u003cp\u003eThis bit is suited for machine shop environments, industrial maintenance, and fabrication work where large-diameter holes are required in a single pass. The 4MT shank seats directly in compatible spindles without a drill chuck, transferring torque efficiently for larger diameters. Right-hand cutting direction and a regular spiral flute make it appropriate for most conventional drill press and lathe tailstock setups. It conforms to ANSI standards and is rated for general-purpose tool performance per its Series 209 classification.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1.1563-inch (1-5\/32 inch) cutting diameter for large-bore drilling in a single pass\u003c\/li\u003e\n\u003cli\u003e4MT Morse Taper shank seats directly in compatible spindle sockets without a chuck\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction with oxide finish for general-purpose metal drilling\u003c\/li\u003e\n\u003cli\u003e118-degree standard point with web thinning for reduced thrust and accurate entry\u003c\/li\u003e\n\u003cli\u003e7.25-inch spiral flute length with regular right-hand spiral for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eANSI-compliant Series 209 — consistent with standard tooling interchangeability requirements\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in drill presses, lathes, and milling machines fitted with a No. 4 Morse Taper (4MT) spindle socket. Coolant-through operation is not supported.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and removal of taper shank tooling should be performed by a qualified machinist or toolroom technician. Power down and lock out the machine before seating or drifting the bit. Use a proper drift key in the spindle slot to remove the bit — never strike the bit directly. Verify the taper socket is clean and free of chips or burrs before insertion to ensure full seating and safe torque transfer.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size\u003c\/strong\u003e: 1.1563 inches (1-5\/32 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Taper Designation\u003c\/strong\u003e: 4MT (Morse Taper No. 4)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 12.875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 7.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 118 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard with web thinning\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral (Regular)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Performance\u003c\/strong\u003e: General Purpose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 209\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.5 pounds\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: 5999518\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51700668891442,"sku":"5999518","price":202.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/91f3c7609b9c9ca5a8425dc07c240c2d_3684660b-0d17-4e8e-bc40-4064403cb8f0.jpg?v=1788393554","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5999518-taper-shank-drill-bit-4mt","provider":"Voomi Supply","version":"1.0","type":"link"}