{"product_id":"parlec-s20-77ta2-tapping-chuck-2-in-straight-shank","title":"Parlec S20-77TA2 Tapping Chuck 2 in Straight Shank","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PARLEC S20-77TA2 is a tension-compression tapping chuck designed for precision thread-tapping operations on machining centers and CNC equipment. It features a 2 inch straight shank for direct spindle mounting and accommodates a tap capacity range from M3.5 (No. 6) to M36 (1-5\/8 inches), making it suitable for a wide range of threading work in production and job-shop environments. The 2.75 inch projection positions the tap at the correct working depth without interference. Tension travel measures 0.56 inches and compression range spans 0.00 to 0.25 inches, allowing the chuck to compensate for minor feed-rate variation and protect taps during the cut.\u003c\/p\u003e\u003cp\u003eThis tapping chuck is used in vertical and horizontal machining center setups where rigid or floating tap holders are required for threaded-hole production. It handles both standard and pipe tap applications, with a maximum pipe tap capacity of 1-1\/4 inches and a minimum pipe tap capacity of 1\/16 inch. It is suited for general metalworking, mold-and-die, and production machining environments where repeatable, damage-free tapping is a priority. Machinists and CNC tool-setup technicians are the primary users of this toolholder.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTension-compression float compensates for minor spindle feed mismatch, extending tap life\u003c\/li\u003e\n\u003cli\u003e2 inch straight shank for direct machine spindle mounting\u003c\/li\u003e\n\u003cli\u003eWide tap capacity range: M3.5 to M36 (No. 6 to 1-5\/8 inches)\u003c\/li\u003e\n\u003cli\u003e2.75 inch projection provides clearance for most standard workpiece setups\u003c\/li\u003e\n\u003cli\u003ePipe tap capacity from 1\/16 inch to 1-1\/4 inches\u003c\/li\u003e\n\u003cli\u003eNon-quick-change design for secure, stable toolholder retention\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style tapping chuck for use with machining center spindles accepting a 2 inch straight shank modular toolholder connection.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and tool changes should be performed by a qualified CNC machinist or toolroom technician with the machine spindle fully powered down and the tool-change interlock engaged. Follow the machine tool builder guidelines for drawbar torque and shank seating when mounting straight-shank toolholders. Verify tap adapter collet retention and axial float travel before running the first part. Inspect tension-compression mechanism for free movement prior to each setup.\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: 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Tap Capacity\u003c\/strong\u003e: M3.5 (No. 6)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Tap Capacity\u003c\/strong\u003e: M36 (1-5\/8 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Pipe Tap Capacity\u003c\/strong\u003e: 1\/16 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Pipe Tap Capacity\u003c\/strong\u003e: 1-1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProjection\u003c\/strong\u003e: 2.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTension Travel\u003c\/strong\u003e: 0.56 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Range\u003c\/strong\u003e: 0.00 to 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrough Coolant\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick-Change\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: PARLEC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: S20-77TA2\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PARLEC","offers":[{"title":"Default Title","offer_id":52029096132914,"sku":"S20-77TA2","price":869.87,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ec3c2cac4f4a1ecc2a17798328ba9c81.jpg?v=1790018246","url":"https:\/\/voomisupply.com\/products\/parlec-s20-77ta2-tapping-chuck-2-in-straight-shank","provider":"Voomi Supply","version":"1.0","type":"link"}