{"product_id":"accupro-775150-end-mill-holder-cat50-1-1-4-in-hole","title":"Accupro 775150 End Mill Holder CAT50 1-1\/4 in Hole","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO 775150 is a CAT50 taper shank end mill holder designed for secure tool retention in CNC machining centers. It accepts a 1-1\/4 inch bore and delivers a 4 inch projection from spindle face to tool tip. The holder supports through-spindle and DIN flange coolant delivery, allowing cutting fluid to reach the tool tip directly for improved chip evacuation and thermal control. A TIR of 0.0002 inch ensures tight runout tolerance, making it suitable for precision milling operations. Machinists and CNC service technicians install this holder in high-speed machining applications requiring reliable tool holding and balanced rotation.\u003c\/p\u003e\n\u003cp\u003eThis holder is suited for CAT50-spindle machining centers used in industrial manufacturing, job shops, and production environments. The 4 inch projection accommodates tooling setups where clearance is needed between the spindle nose and workpiece. With a balanced-to-RPM rating of 25,000 RPM, it supports high-speed spindle applications. The drawbar thread size of 1-8 is standard for CAT50 tooling systems. Through-coolant capability makes this holder appropriate for deep-reach milling, pocketing, and other operations where flood coolant alone is insufficient.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCAT50 taper shank for direct mounting in compatible machining center spindles\u003c\/li\u003e\n  \u003cli\u003e1-1\/4 inch bore diameter for secure end mill retention\u003c\/li\u003e\n  \u003cli\u003e4 inch projection for extended reach tooling setups\u003c\/li\u003e\n  \u003cli\u003eThrough-spindle and DIN flange coolant delivery for direct tool-tip cooling\u003c\/li\u003e\n  \u003cli\u003eTIR of 0.0002 inch for high-precision runout control\u003c\/li\u003e\n  \u003cli\u003eBalanced to 25,000 RPM for high-speed machining compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-fit holder for CAT50 spindle machining centers using a 1-8 drawbar thread and requiring through-coolant tool holding at 1-1\/4 inch bore diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified CNC machinists or tooling technicians. Always power down and lock out the machining center spindle before inserting or removing tool holders. Verify drawbar engagement to the 1-8 thread spec and confirm coolant passages are clear before resuming operation. Do not exceed the balanced RPM rating of 25,000 RPM during setup or cutting.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Taper\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTaper Size\u003c\/strong\u003e: CAT50\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 1-1\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNose Diameter\u003c\/strong\u003e: 63.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProjection\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThrough Coolant\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Type\u003c\/strong\u003e: Through-Spindle and DIN Flange\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTIR\u003c\/strong\u003e: 0.0002 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrawbar Thread Size\u003c\/strong\u003e: 1-8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBalanced To RPM\u003c\/strong\u003e: 25,000 RPM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112800\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: ACCUPRO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 775150\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51732371046706,"sku":"775150","price":146.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1d15915aab83e939add634593a2433c1.jpg?v=1788742170","url":"https:\/\/voomisupply.com\/products\/accupro-775150-end-mill-holder-cat50-1-1-4-in-hole","provider":"Voomi Supply","version":"1.0","type":"link"}