{"product_id":"guhring-9042520095200-square-end-mill-3-8-in-4-flute-carbide","title":"Guhring 9042520095200 Square End Mill 3\/8 in 4 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GUHRING 9042520095200 is a solid carbide square end mill designed for high-performance milling in ferrous and hard materials. Built on Guhring Series 4252, it features a variable helix geometry with helix angles of 35 and 38 degrees, which reduces chatter and improves chip evacuation in demanding cuts. The FIREX coating provides enhanced wear resistance and thermal stability, extending tool life in abrasive workpiece materials. With a 3\/8-inch cutting diameter, 2-1\/4-inch length of cut, and 4-inch overall length, this is classified as an extra-long reach tool. It is centercutting and carries a right-hand cut, right-hand spiral flute configuration with four flutes. Machinists and CNC programmers in production shops and job shops are the primary users.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for milling cast iron and steel as its primary workpiece materials, with secondary capability in hard materials, stainless steel, and other difficult-to-machine alloys. The extra-long length of cut makes it appropriate for deep cavity milling, side milling, and slot milling operations where standard-length tools cannot reach. It is used on vertical machining centers, horizontal mills, and CNC knee mills. The straight-cylindrical shank fits standard ER collet chucks, end mill holders, and shrink-fit tooling systems sized for 3\/8-inch shanks.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eVariable helix design at 35 and 38 degrees reduces vibration and chatter in deep cuts\u003c\/li\u003e\n\u003cli\u003eFIREX coating delivers high wear resistance and thermal protection on steel and cast iron\u003c\/li\u003e\n\u003cli\u003eExtra-long 2-1\/4-inch length of cut for deep cavity and extended-reach milling applications\u003c\/li\u003e\n\u003cli\u003eCentercutting geometry allows direct plunge entry into workpiece material\u003c\/li\u003e\n\u003cli\u003eFour-flute spiral configuration balances chip load and surface finish in ferrous materials\u003c\/li\u003e\n\u003cli\u003eMill diameter tolerance h10 and shank diameter tolerance h6 for consistent tool-holder fit\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eCompatible with primary workpiece materials cast iron and steel, and secondary workpiece materials hard material, stainless steel, and high-temp alloys. Fits any 3\/8-inch straight-cylindrical toolholder including ER collets and shrink-fit systems. Part of Guhring Series 4252.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and tool changes should be performed with the machine in a full stop, lockout state per shop safety procedures. Seat the straight-cylindrical shank fully into the toolholder to the minimum engagement depth specified by the holder manufacturer before tightening. Verify runout with a dial indicator before starting a cut, as runout beyond acceptable limits accelerates carbide wear and edge chipping. Follow the toolholder manufacturer torque specifications for collet nuts and set screws — do not use impact tools on precision toolholders.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.3750 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.3750 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 2.2500 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.0000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 35 \/ 38 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Helix\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating \/ Finish\u003c\/strong\u003e: FIREX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Extra Long\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: h10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: h6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Cast Iron, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Hard Material, Stainless Steel\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: 4252\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.039 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: GUHRING\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 9042520095200\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51730935120178,"sku":"9042520095200","price":193.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/805eb793cfe65a9b122f9a9a51ad8bb6_610ad6bc-9252-42dc-99de-9fae580295c5.jpg?v=1788725006","url":"https:\/\/voomisupply.com\/products\/guhring-9042520095200-square-end-mill-3-8-in-4-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}