{"product_id":"value-collection-msc-04914214-hand-tap-1-2-20-unf","title":"Value Collection MSC-04914214 Hand Tap 1\/2-20 Unf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION MSC-04914214 is a 1\/2-20 UNF bottoming hand tap ground from high speed steel and intended for cutting left-hand internal threads in a range of metalworking applications. With a 4-flute straight flute geometry and a bright, uncoated finish, this tap is suited for threading operations where a conventional right-hand configuration is not appropriate. The bottoming chamfer allows threads to be cut to the bottom of a blind hole, making it the right choice when full thread depth close to the base of the hole is required. It carries a Class 3B fit and an H3 thread limit, indicating a tight-tolerance application where precise thread form is expected.\u003c\/p\u003e\u003cp\u003eThis tap is used in machine shops, maintenance and repair operations, and manufacturing environments where left-hand threaded fasteners must be installed or repaired. The 1\/2-20 UNF thread is common in precision mechanical assemblies, automotive components, and industrial machinery. It is typically used by machinists and tool-and-die technicians working with manual tapping setups or low-speed machine tapping. The overall length of 3.375 inches and thread length of 1.656 inches suit it to standard tap handles and holder setups for hand tapping work.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBottoming chamfer enables threading to the full depth of blind holes\u003c\/li\u003e\n\u003cli\u003eLeft-hand thread direction for applications requiring reverse-threaded fasteners\u003c\/li\u003e\n\u003cli\u003e4-flute straight flute design provides stable cutting and chip management\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction offers durability across a range of workpiece materials\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish suitable for use with standard cutting fluids\u003c\/li\u003e\n\u003cli\u003eClass 3B fit with H3 thread limit for tight-tolerance thread requirements\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-use hand tap for 1\/2-20 UNF left-hand threaded applications requiring a bottoming chamfer; no specific model or system compatibility was provided with this product.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap is installed by machinists or maintenance technicians using a standard tap handle or wrench suited to the tap square size. Before tapping, ensure the workpiece is securely fixtured and the pilot hole is drilled to the correct diameter for a 1\/2-20 UNF thread. Apply an appropriate cutting fluid throughout the operation to reduce heat and extend tool life. Do not force the tap if resistance increases unexpectedly, as high speed steel tools are susceptible to breakage under excessive torque.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-20\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Left Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Bottoming\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: H3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Style\u003c\/strong\u003e: Straight\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\u003eOverall Length\u003c\/strong\u003e: 3.375 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1.656 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.28 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: MSC-04914214\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51717532090674,"sku":"MSC-04914214","price":29.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1bab7abbe6002dd534473b65fa27cf70.jpg?v=1788542026","url":"https:\/\/voomisupply.com\/products\/value-collection-msc-04914214-hand-tap-1-2-20-unf","provider":"Voomi Supply","version":"1.0","type":"link"}