{"product_id":"seco-17010385-roughing-end-mill-3-4-in-4-flute-cobalt-m42","title":"Seco 17010385 Roughing End Mill 3\/4 in 4 Flute Cobalt M42","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SECO 17010385 is a single-end cobalt roughing end mill designed for aggressive material removal in milling operations. Built from M42 cobalt high-speed steel, it delivers heat and wear resistance suited to harder workpiece materials. The 3\/4 inch diameter cutter carries four right-hand spiral flutes with a maximum helix angle of 30 degrees and a 3 inch length of cut, giving machinists substantial engagement depth on roughing passes. The overall length is 5.25 inches. This is a bright, uncoated tool with a non-centercutting geometry, appropriate for peripheral roughing rather than plunge entry. Licensed machinists and toolroom technicians are the primary installers.\u003c\/p\u003e\u003cp\u003eThis end mill is used in vertical and horizontal milling machine setups where rough stock removal is the primary objective. It is suited to ferrous and non-ferrous materials in job shop, production, and maintenance machining environments. The Series REM445 designation places it within a defined product family of roughing profile cutters. The 3\/4 inch shank diameter matches the mill diameter, allowing direct chucking in standard collets or end mill holders without a step-down adapter. No coolant-through capability is present, so flood or mist coolant must be applied externally.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt high-speed steel construction for heat resistance during aggressive roughing cuts\u003c\/li\u003e\n\u003cli\u003e4 right-hand spiral flutes with 30-degree maximum helix angle for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003e3 inch length of cut supports deep shoulder and slot roughing passes\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish — no coating buildup concerns on regrinding\u003c\/li\u003e\n\u003cli\u003eSingle-end, non-centercutting geometry designed for peripheral roughing operations\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting direction compatible with standard spindle rotation on most milling machines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use roughing end mill for milling applications requiring a 3\/4 inch single-end cobalt cutter with a 3\/4 inch straight shank; fits standard 3\/4 inch collets and end mill holders.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by a machinist or toolroom technician. Power down and lock out the milling machine spindle before seating or removing the tool from the holder. Verify that the collet or end mill holder bore matches the 3\/4 inch shank diameter before torquing the drawbar or set screws. Because this cutter is non-centercutting, do not use it for direct plunge entry into solid material.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.750 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 3.000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.750 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Cobalt (M42 HSS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright, Uncoated\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\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Helix Angle\u003c\/strong\u003e: 30 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: REM445\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: -0.0001 to -0.0005 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.003 to -0.000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length Tolerance\u003c\/strong\u003e: +0.062 to -0.000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112803\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SECO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 17010385\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SECO TOOLS","offers":[{"title":"Default Title","offer_id":51557491966258,"sku":"17010385","price":141.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/bc02fbdd14cb29a2ef9705c81c46f6d9_190aab98-5464-4cdd-9099-4960a16bd8da.jpg?v=1786389406","url":"https:\/\/voomisupply.com\/products\/seco-17010385-roughing-end-mill-3-4-in-4-flute-cobalt-m42","provider":"Voomi Supply","version":"1.0","type":"link"}