{"product_id":"collis-tool-75024-end-mill-holder-cat40-4-in-projection","title":"Collis Tool 75024 End Mill Holder CAT40 4 in Projection","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe COLLIS TOOL 75024 is a CAT40 taper shank end mill holder designed for use in CNC machining centers requiring rigid, accurate tool retention. With a 4-inch projection and a 2.5-inch nose diameter, this holder positions cutting tools at an extended reach while maintaining concentricity and rigidity at the spindle interface. The 75024 supports through-coolant delivery via both through-spindle and DIN flange coolant types, directing fluid directly to the cutting zone for improved chip evacuation and tool life. Machinists and CNC setup technicians install this holder as part of a standard CAT40 tooling assembly.\u003c\/p\u003e\n\u003cp\u003eThis end mill holder is suited for vertical and horizontal machining centers equipped with CAT40 spindle tapers. The 4-inch projection makes it appropriate for applications requiring clearance from the spindle face, such as deep-pocket milling or workpiece fixturing with tall clamps. The through-coolant capability supports high-speed cutting operations where flood coolant alone is insufficient. The 3.25-inch flange diameter and 32 mm bore are consistent with standard CAT40 tooling configurations used in production and job-shop environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCAT40 taper shank for direct mounting in CAT40-equipped machining center spindles\u003c\/li\u003e\n  \u003cli\u003e4-inch projection for extended reach in deep-pocket and obstructed-workpiece applications\u003c\/li\u003e\n  \u003cli\u003e2.5-inch nose diameter provides a robust clamping interface for end mill retention\u003c\/li\u003e\n  \u003cli\u003eThrough-coolant compatible via through-spindle and DIN flange coolant delivery\u003c\/li\u003e\n  \u003cli\u003e32 mm bore diameter accommodates standard end mill shanks in that size range\u003c\/li\u003e\n  \u003cli\u003e3.25-inch flange diameter consistent with CAT40 tooling standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-fit toolholder for machining centers with CAT40 taper spindles requiring through-coolant capability.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified CNC machinist or toolroom technician. Power down the machining center and engage the spindle lock before inserting or removing toolholders. Use a calibrated torque wrench and the appropriate retention knob specification for the machine spindle when securing the CAT40 taper. Inspect the taper bore and spindle for chips or damage before seating the holder, and verify drawbar engagement before initiating any cutting cycle.\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: CAT40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProjection\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNose Diameter\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6.687 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBore Diameter\u003c\/strong\u003e: 32 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlange Diameter\u003c\/strong\u003e: 3.25 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\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: COLLIS TOOL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 75024\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"COLLIS TOOL","offers":[{"title":"Default Title","offer_id":67906172092722,"sku":"75024","price":281.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5c9605bef138658ecbba757c169f7f39.jpg?v=1791165686","url":"https:\/\/voomisupply.com\/products\/collis-tool-75024-end-mill-holder-cat40-4-in-projection","provider":"Voomi Supply","version":"1.0","type":"link"}