{"product_id":"walter-prototyp-7557167-spiral-point-tap-3-4-10-unc-hss-e","title":"Walter-prototyp 7557167 Spiral Point Tap 3\/4-10 Unc Hss-e","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe WALTER-PROTOTYP 7557167 is a spiral point tap designed for right-hand through-hole threading in a 3\/4-10 UNC configuration. Built from High-Speed Steel-E (HSS-E) and finished with a TiAlN coating, it delivers elevated heat resistance and extended tool life in demanding production environments. The plug chamfer geometry distributes cutting load across the leading threads, making it well suited for through-hole applications where chips are pushed forward and cleared ahead of the tap. With 4 flutes, a 4.921-inch overall length, and a 1.181-inch thread length, this tap is sized for general industrial and precision machining work. It carries a 2B class of fit, which is the standard tolerance for most commercial threaded fastener assemblies.\u003c\/p\u003e\u003cp\u003eThis tap is intended for through-hole threading operations in materials including steel, stainless steel, cast iron, and non-ferrous metals. It is used in CNC machining centers, drill presses, and manual tapping setups where a plug chamfer entry and forward chip ejection are appropriate for the workpiece and fixturing. The TC217 series is engineered for production-volume threading where coating durability and dimensional consistency across the run matter. Machinists, tool and die makers, and CNC operators working in job shops or manufacturing facilities are the primary users of this tap.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTiAlN coating improves heat resistance and extends tool life in steel and stainless steel applications\u003c\/li\u003e\n\u003cli\u003eHSS-E substrate provides toughness and wear resistance beyond standard HSS\u003c\/li\u003e\n\u003cli\u003ePlug chamfer entry pushes chips forward, ideal for through-hole threading\u003c\/li\u003e\n\u003cli\u003e4-flute design balances chip clearance and thread form stability\u003c\/li\u003e\n\u003cli\u003e2B class of fit meets standard commercial threading tolerances\u003c\/li\u003e\n\u003cli\u003eNo coolant-through requirement simplifies setup in conventional machine environments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for through-hole threading in steel, stainless steel, cast iron, and non-ferrous metals. Suitable for use in standard 3\/4-10 UNC threaded assemblies requiring a 2B class of fit tolerance.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap should be installed by a qualified machinist following standard tapping procedures. Ensure the workpiece is securely fixtured and the spindle is aligned with the hole before engaging the tap. Apply appropriate cutting fluid for the workpiece material even though coolant-through is not required; dry tapping in steel or stainless steel will accelerate wear. Follow shop safety protocols and machine manufacturer guidelines when setting spindle speed and feed rate for the tap diameter and material.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/4-10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 2B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer Style\u003c\/strong\u003e: Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: HSS-E\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.921 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1.181 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.590 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 1.870 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Pitch\u003c\/strong\u003e: 0.1 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Through-Hole Threading\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, Non-Ferrous Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: TC217\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: WY80RG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.34 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: WALTER-PROTOTYP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 7557167\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WALTER","offers":[{"title":"Default Title","offer_id":67911284097330,"sku":"7557167","price":237.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9f93e5efa1da559a933c1004b3c993bc.jpg?v=1791208378","url":"https:\/\/voomisupply.com\/products\/walter-prototyp-7557167-spiral-point-tap-3-4-10-unc-hss-e","provider":"Voomi Supply","version":"1.0","type":"link"}