{"product_id":"techniks-41940-er40-slotted-collet-nut-through-coolant","title":"Techniks 41940 ER40 Slotted Collet Nut Through Coolant","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe TECHNIKS 41940 is a slotted collet nut designed for use with ER40 collet chucks in CNC machining applications. The slotted profile provides clearance for through-coolant delivery, directing cutting fluid directly to the tool tip for improved chip evacuation and tool life during high-speed milling, drilling, and tapping operations. Weighing 0.18 pounds, this nut is a direct-fit component for ER40 toolholding systems. It is installed and serviced by CNC machinists, tool crib technicians, and machine tool setup personnel.\u003c\/p\u003e\u003cp\u003eThis collet nut is suited for ER40 collet chuck assemblies used in machining centers, mills, and drill-tap machines where through-spindle or through-tool coolant is required. The through-coolant feature makes it appropriate for deep-hole drilling, high-feed milling, and other operations where flood coolant alone is insufficient. It is a commonly replaced wear item in production and job-shop environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCompatible with ER40 collet series toolholders\u003c\/li\u003e\n\u003cli\u003eSlotted design enables through-coolant delivery to the cutting tool\u003c\/li\u003e\n\u003cli\u003eLightweight construction at 0.18 pounds\u003c\/li\u003e\n\u003cli\u003eDirect replacement for standard ER40 collet nuts in coolant-through setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement collet nut for ER40 series collet chuck toolholding systems requiring through-coolant capability.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or tooling technician. Ensure the spindle is fully stopped and the machine is in an e-stop or powered-down state before changing tooling. Use the appropriate ER40 spanner wrench to tighten the collet nut to the toolholder  -  do not use makeshift tools that can damage the nut slots. Verify coolant passages are clear and unobstructed before returning the assembly to service.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollet Series\u003c\/strong\u003e: ER40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: Slotted Collet Nut\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.18 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: TECHNIKS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 41940\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TECHNIKS","offers":[{"title":"Default Title","offer_id":51991047569714,"sku":"41940","price":76.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/daace1b7af294d944efa9b07de219177_a489f223-b565-4614-bb99-5698f4717112.jpg?v=1789989363","url":"https:\/\/voomisupply.com\/products\/techniks-41940-er40-slotted-collet-nut-through-coolant","provider":"Voomi Supply","version":"1.0","type":"link"}