{"product_id":"kennametal-1125657-pilot-drill-insert-8mm-hts-c","title":"Kennametal 1125657 Pilot Drill Insert 8mm Hts-c","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 1125657 is a pilot drill insert designed for use in indexable drilling systems that require a replaceable center-cutting element. Manufactured from High Speed Steel (HSS) in the AS3 grade and coated with Titanium Nitride (TiN), this insert delivers improved surface hardness and wear resistance compared to uncoated HSS tooling. The TiN coating reduces friction at the cutting edge, extending tool life in ferrous and non-ferrous materials. At 8mm diameter and conforming to Insert Style B503, it fits within the HTS-C series system. This insert is installed and replaced by machinists and tool-crib technicians in production and job-shop environments.\u003c\/p\u003e\u003cp\u003eThis pilot drill insert is intended for use in HTS-C series modular drill bodies that accept Style B503 inserts. The 8mm cutting diameter makes it suitable for pilot-hole drilling operations in general metalworking applications, including structural steel, mild steel, and similar workpiece materials. It is a single-piece replaceable component, allowing the drill body to be reused while only the worn insert is swapped out. Typical applications include CNC machining centers, manual drill presses, and turret lathes where controlled hole entry and accurate pilot geometry are required.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHigh Speed Steel construction with AS3 manufacturer grade for toughness and edge retention\u003c\/li\u003e\n\u003cli\u003eTitanium Nitride (TiN) coating increases surface hardness and reduces cutting friction\u003c\/li\u003e\n\u003cli\u003e8mm cutting diameter sized for HTS-C series drill bodies\u003c\/li\u003e\n\u003cli\u003eInsert Style B503 for precise, repeatable seating in compatible toolholders\u003c\/li\u003e\n\u003cli\u003eIndexable design allows insert replacement without discarding the drill body\u003c\/li\u003e\n\u003cli\u003e132-degree point geometry for aggressive, centered hole entry\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a replacement pilot drill insert for KENNAMETAL HTS-C series modular drill systems accepting Style B503 inserts at 8mm diameter. Confirm drill body series and insert style designation before ordering.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and locked out before removing or seating any insert. Use the appropriate torque key or insert wrench specified for the drill body to avoid damaging the insert pocket or seating surfaces. Inspect the pocket and clamping mechanism for wear or debris before installing a new insert.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 8mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Angle\u003c\/strong\u003e: 132 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: B503\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: AS3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Titanium Nitride (TiN)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: HTS-C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0302 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: KENNAMETAL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1125657\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51733930246450,"sku":"1125657","price":97.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b5f86073c3137f835bbd06ecd1dfb88c.jpg?v=1788760012","url":"https:\/\/voomisupply.com\/products\/kennametal-1125657-pilot-drill-insert-8mm-hts-c","provider":"Voomi Supply","version":"1.0","type":"link"}