{"product_id":"iscar-3800112-threading-toolholder-internal-left-hand-sil","title":"Iscar 3800112 Threading Toolholder Internal Left Hand Sil","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ISCAR 3800112 is an indexable threading toolholder designed for internal threading operations on CNC lathes and turning centers. Built in a left-hand orientation, it accepts a P 16 insert held in place by a screw-clamp method, delivering repeatable insert positioning for consistent thread form. The shank measures 0.75 inches wide by 0.75 inches tall with a shank length of 6.375 inches and an overall length of 7 inches. Minimum bore diameter is 0.75 inches. This toolholder belongs to ISCARs SIL series and is installed by CNC machinists and tool-room technicians working in production or job-shop threading applications.\u003c\/p\u003e\u003cp\u003eThis toolholder is suited for internal threading on bore diameters starting at 0.75 inches. The left-hand configuration positions the cutting edge for specific spindle-direction and approach requirements common in Swiss-type, gang-tool, and conventional slant-bed turning setups. The head length and maximum depth of cut are both 1.5 inches, and the back-of-bar to cutting edge measures 0.75 inches, with a center-to-cutting-edge offset of 0.45 inches. No through-coolant or external coolant port is incorporated in this configuration.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eLeft-hand internal threading configuration for SIL series turning applications\u003c\/li\u003e\n\u003cli\u003eScrew-clamp insert holding method for secure, repeatable P 16 insert seating\u003c\/li\u003e\n\u003cli\u003e0.75 inch minimum bore diameter suits a wide range of internal thread diameters\u003c\/li\u003e\n\u003cli\u003e7 inch overall length with 6.375 inch shank length for extended reach into bores\u003c\/li\u003e\n\u003cli\u003eSquare 0.75 x 0.75 inch shank fits standard tool block and quick-change holders\u003c\/li\u003e\n\u003cli\u003eNo coolant-through design simplifies setup where coolant delivery is not required\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with P 16 series threading inserts in ISCAR SIL series internal threading toolholder applications. Verify insert inscribed circle size of 3\/8 inch when selecting replacement inserts.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified CNC machinists or toolroom technicians. Secure the shank in a compatible tool block or turret station rated for a 0.75 x 0.75 inch shank before powering the machine. Confirm spindle direction and tool orientation match the left-hand designation before running. Torque the insert clamping screw to the insert manufacturers specification using the correct Torx or hex key; do not overtighten.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Internal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHand of Holder\u003c\/strong\u003e: Left Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eToolholder Style\u003c\/strong\u003e: SI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: SIL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Compatibility\u003c\/strong\u003e: P 16\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Inscribed Circle\u003c\/strong\u003e: 3\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Width\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Height\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 6.375 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 7 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Bore Diameter\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Length\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBack of Bar to Cutting Edge\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter to Cutting Edge\u003c\/strong\u003e: 0.45 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Entry Style\u003c\/strong\u003e: Without Coolant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Tool Application\u003c\/strong\u003e: Threading\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ISCAR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 3800112\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ISCAR","offers":[{"title":"Default Title","offer_id":51728545841458,"sku":"3800112","price":199.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/34a9878617cd2085b84c1f7ce7f2558b.jpg?v=1788693098","url":"https:\/\/voomisupply.com\/products\/iscar-3800112-threading-toolholder-internal-left-hand-sil","provider":"Voomi Supply","version":"1.0","type":"link"}