{"product_id":"collis-tool-78943-size-2-tapping-adapter-through-coolant","title":"Collis Tool 78943 Size 2 Tapping Adapter Through Coolant","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe COLLIS TOOL 78943 is a Size 2 tapping adapter designed for use in quick-change tooling systems on CNC machining centers and rigid tapping applications. It accepts a tap shank diameter of 0.687 inches and a tap square size of 0.515 inches, providing a secure, positive drive connection during the tapping cycle. Through-coolant capability delivers cutting fluid directly to the tap point, improving chip evacuation and extending tap life in ferrous and non-ferrous materials. This adapter is installed by machinists and CNC setup technicians in production and job-shop environments.\u003c\/p\u003e\u003cp\u003eThis tapping adapter is suited for horizontal and vertical machining centers running synchronous or rigid tapping cycles. The quick-change interface allows fast tap changes between operations without removing the holder from the spindle, reducing cycle time on high-mix production runs. A flange diameter of 1.88 inches and a projection of 0.35 inches keep the adapter compact in tight-clearance bores. Tap depth reach is 1.37 inches, making it appropriate for standard through-hole and blind-hole tapping at Size 2 capacity.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSize 2 adapter fits taps with a 0.687-inch shank diameter and 0.515-inch square drive\u003c\/li\u003e\n\u003cli\u003eThrough-coolant design channels fluid to the cutting edge for improved tool life and chip flushing\u003c\/li\u003e\n\u003cli\u003eQuick-change interface enables rapid tap swaps without disturbing the spindle holder\u003c\/li\u003e\n\u003cli\u003eProjection of 0.35 inches supports compact setups in confined bores\u003c\/li\u003e\n\u003cli\u003eTap depth capacity of 1.37 inches covers most standard tapping applications at this size class\u003c\/li\u003e\n\u003cli\u003eFlange diameter of 1.88 inches provides stable seating in the quick-change body\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in Size 2 quick-change tapping tooling systems that accept a 0.687-inch tap shank diameter with through-coolant capability.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by a machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and the tool changer is in a safe state before inserting or removing the adapter. Verify the tap square seats fully and squarely in the drive socket before running the tapping cycle. Follow the machine tool builder guidelines and applicable shop safety procedures when setting up coolant-through tooling.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdapter Size\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTap Shank Diameter\u003c\/strong\u003e: 0.687 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTap Square Size\u003c\/strong\u003e: 0.515 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProjection\u003c\/strong\u003e: 0.35 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTap Depth\u003c\/strong\u003e: 1.37 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlange Diameter\u003c\/strong\u003e: 1.88 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick-Change\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 78943\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"COLLIS TOOL","offers":[{"title":"Default Title","offer_id":67915570315570,"sku":"78943","price":100.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1e47efc9ef2a4d77a959d85136142802.jpg?v=1791254153","url":"https:\/\/voomisupply.com\/products\/collis-tool-78943-size-2-tapping-adapter-through-coolant","provider":"Voomi Supply","version":"1.0","type":"link"}