{"product_id":"somta-series-531-1-4-bsf-hss-second-tap","title":"Somta 1\/4\" BSF HSS Second Hand Tap","description":"\u003cp\u003eThe Somta Series 531 1\/4\" BSF Second Hand Tap is manufactured from premium High-Speed Steel (HSS) and is designed for producing accurate British Standard Fine (BSF) internal threads. Manufactured to ISO 529 standards, this precision tool is ideal for general hand tapping operations, offering excellent cutting performance, durability, and long service life.\u003c\/p\u003e\n\u003cp\u003eThe second tap is the intermediate tap used after the taper tap and before the bottoming tap, progressively forming the thread profile while reducing cutting loads. Its straight flute design provides dependable chip evacuation and smooth cutting action in a wide range of engineering materials.\u003c\/p\u003e\n\u003cp\u003eKey Features \u0026amp; Benefits\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eManufactured from premium High-Speed Steel (HSS)\u003c\/li\u003e\n\u003cli\u003eBritish Standard Fine (BSF) thread form\u003c\/li\u003e\n\u003cli\u003eSecond hand tap for intermediate thread cutting\u003c\/li\u003e\n\u003cli\u003eManufactured to ISO 529 standards\u003c\/li\u003e\n\u003cli\u003eClass 2 thread tolerance\u003c\/li\u003e\n\u003cli\u003eStraight flute design for general-purpose threading\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting direction\u003c\/li\u003e\n\u003cli\u003ePrecision ground for accurate and consistent thread production\u003c\/li\u003e\n\u003cli\u003eExcellent wear resistance and extended tool life\u003c\/li\u003e\n\u003cli\u003eSuitable for maintenance, engineering, and workshop applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTechnical Specifications\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Somta\u003c\/li\u003e\n\u003cli\u003eSeries: 531\u003c\/li\u003e\n\u003cli\u003ePart Number: 5310642\u003c\/li\u003e\n\u003cli\u003eTap Type: Second Hand Tap\u003c\/li\u003e\n\u003cli\u003eThread Size: 1\/4\" BSF\u003c\/li\u003e\n\u003cli\u003eThreads Per Inch (TPI): 26\u003c\/li\u003e\n\u003cli\u003eOverall Length (l1): 66mm\u003c\/li\u003e\n\u003cli\u003eThread Length (l2): 19mm\u003c\/li\u003e\n\u003cli\u003eShank Diameter (d1): 6.3mm\u003c\/li\u003e\n\u003cli\u003eSquare Size (a): 5mm\u003c\/li\u003e\n\u003cli\u003eNumber of Flutes: 3\u003c\/li\u003e\n\u003cli\u003eMaterial: High-Speed Steel (HSS)\u003c\/li\u003e\n\u003cli\u003eThread Standard: BSF\u003c\/li\u003e\n\u003cli\u003eStandard: ISO 529\u003c\/li\u003e\n\u003cli\u003eTolerance Class: Class 2\u003c\/li\u003e\n\u003cli\u003eFlute Style: Straight Flute\u003c\/li\u003e\n\u003cli\u003eCutting Direction: Right Hand\u003c\/li\u003e\n\u003cli\u003eApplication: General Hand Tapping\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSomta hand taps are trusted by professional machinists and engineers worldwide for their precision manufacturing and dependable cutting performance. The Series 531 BSF Second Hand Tap delivers smooth thread formation and excellent dimensional accuracy for workshop and industrial threading applications.\u003c\/p\u003e","brand":"SOMTA","offers":[{"title":"Default Title","offer_id":51226758381855,"sku":"5310642","price":19.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0050\/2484\/1799\/files\/somta-taps-somta-series-531-1-4-bsf-hss-second-tap-4749821548891-1198290693.png?v=1763626926","url":"https:\/\/twineagleimports.com\/products\/somta-series-531-1-4-bsf-hss-second-tap","provider":"Twin Eagle Imports ","version":"1.0","type":"link"}