{"product_id":"value-collection-jy4877155-hand-tap-1-3-4-16-uns","title":"Value Collection JY4877155 Hand Tap 1-3\/4-16 Uns","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION JY4877155 is a 1-3\/4-16 UNS bottoming hand tap ground from high speed steel with a bright uncoated finish. It is designed to cut internal threads to the bottom of a blind hole, making it the final step in a standard tap sequence after taper and plug taps have been used. The H4 thread limit and 3B class of fit suit close-tolerance production work. Six straight flutes provide chip clearance and smooth cutting action on ferrous and non-ferrous materials. Overall length is 5 inches. Licensed machinists, tool and die makers, and maintenance technicians use this tap for threading operations by hand or with a tapping fixture.\u003c\/p\u003e\n\u003cp\u003eThis bottoming tap is suited for threading applications where the full thread depth must reach near the bottom of a blind hole. The 1-3\/4-16 Unified National Special thread form is used in custom machined assemblies, heavy equipment, and hydraulic or mechanical components where a coarse standard pitch is not available in the UNC or UNF series. The straight flute configuration makes it appropriate for through-hole and short blind-hole applications in ductile and free-machining materials. A right-hand thread direction is standard for conventional fastener engagement.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBottoming chamfer cuts threads to within a few pitches of the hole bottom in blind-hole applications\u003c\/li\u003e\n  \u003cli\u003eH4 thread limit with 3B class of fit for close-tolerance internal threading\u003c\/li\u003e\n  \u003cli\u003eSix straight flutes for balanced cutting load and chip ejection\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction withstands heat generated during hand and machine tapping\u003c\/li\u003e\n  \u003cli\u003eBright uncoated finish — no coating to interfere with dimensional tolerance or require stripping before regrind\u003c\/li\u003e\n  \u003cli\u003e5 inches overall length provides adequate shank for standard tap wrenches and holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for hand tapping or use in a tapping fixture requiring a 1-3\/4-16 UNS right-hand internal thread. Fits standard square-drive tap wrenches and collet-style tapping holders sized for large-diameter taps.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tap is installed by a machinist or toolmaker using a calibrated tap wrench or tapping fixture. The workpiece should be securely clamped and the hole should be drilled to the correct tap drill diameter and deburred before threading begins. Apply appropriate cutting fluid for the workpiece material to reduce heat and extend tap life. Use in sequence after taper and plug taps when starting a new hole; advance in partial turns and reverse periodically to break chips and prevent tap breakage.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1-3\/4-16\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Bottoming\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 6\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Straight\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 3B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOversize\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: VALUE COLLECTION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: JY4877155\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51692733235506,"sku":"JY4877155","price":411.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/db5bb68412ddaf3599723539d898cd58.jpg?v=1788301901","url":"https:\/\/voomisupply.com\/products\/value-collection-jy4877155-hand-tap-1-3-4-16-uns","provider":"Voomi Supply","version":"1.0","type":"link"}