{"product_id":"collis-tool-77822-tension-compression-tapping-chuck","title":"Collis Tool 77822 Tension Compression Tapping Chuck","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe COLLIS TOOL 77822 is a tension and compression tapping chuck designed for precision tapping operations in machine shop and production environments. It features a 1-inch straight shank and accepts taps up to 7\/8 inch capacity, with a 4.88-inch projection that positions the tap accurately relative to the spindle face. The quick-change design allows adapters to be swapped without removing the chuck body from the machine, reducing cycle time during multi-tap setups. A Size 2 adapter is specified for this configuration. Licensed machinists and toolroom technicians install and operate this chuck on CNC machining centers, drill presses, and tapping machines.\u003c\/p\u003e\u003cp\u003eThis chuck is suited for both production and job-shop tapping applications where controlled float is required to protect tap life and thread quality. The tension and compression float mechanism compensates for minor synchronization error between spindle feed and tap pitch, reducing tap breakage. It supports straight-shank machine spindles with a 1-inch shank diameter and is appropriate for threading operations on ferrous and non-ferrous workpieces. Pipe tap capacity ranges from 1\/8 inch minimum to 1\/2 inch maximum, making it useful for fluid and pneumatic fitting applications as well as standard thread tapping.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTension and compression float mechanism reduces tap breakage by compensating for feed-pitch mismatch\u003c\/li\u003e\n\u003cli\u003eQuick-change design allows fast adapter swaps without disturbing chuck body setup\u003c\/li\u003e\n\u003cli\u003e1-inch straight shank with 3-5\/8 inch shank length for secure machine spindle engagement\u003c\/li\u003e\n\u003cli\u003eMaximum tap capacity of 7\/8 inch; pipe tap range from 1\/8 inch to 1\/2 inch\u003c\/li\u003e\n\u003cli\u003e1.96-inch nose diameter and 4.88-inch projection for clear workpiece access\u003c\/li\u003e\n\u003cli\u003eSize 2 adapter interface; no through-coolant required\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with Size 2 tapping adapters on machines equipped with a 1-inch straight shank spindle connection. Compatible adapters and collets sold separately.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or toolroom technicians. Power down and lock out the machine spindle before installing or removing the chuck or adapter. Ensure the shank is fully seated and secured in the spindle collet or chuck before operation. Verify that the selected tap adapter matches the tap shank size and style before use.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTapping Style\u003c\/strong\u003e: Tension and Compression\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 3-5\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Tap Capacity\u003c\/strong\u003e: 7\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProjection\u003c\/strong\u003e: 4.88 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNose Diameter\u003c\/strong\u003e: 1.96 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTap Adapter Size\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Float\u003c\/strong\u003e: 3\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTension Float\u003c\/strong\u003e: 7\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Pipe Tap Capacity\u003c\/strong\u003e: 1\/2 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Pipe Tap Capacity\u003c\/strong\u003e: 1\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick-Change\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrough Coolant\u003c\/strong\u003e: No\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: 77822\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"COLLIS TOOL","offers":[{"title":"Default Title","offer_id":67907335356722,"sku":"77822","price":443.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/117948e64d9c2dd29df999d38927b557.jpg?v=1791177535","url":"https:\/\/voomisupply.com\/products\/collis-tool-77822-tension-compression-tapping-chuck","provider":"Voomi Supply","version":"1.0","type":"link"}