{"product_id":"harvey-tool-979902-c3-tapered-ball-end-mill-solid-carbide","title":"Harvey Tool 979902-C3 Tapered Ball End Mill Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HARVEY TOOL 979902-C3 is a solid carbide tapered ball end mill designed for precision milling in tight-tolerance and contoured applications. It features a 20-degree taper angle per side, a 0.062-inch small end diameter, and a 0.198-inch length of cut. The ball end geometry produces smooth, curved surfaces in slots, pockets, and three-dimensional profiles. The AlTiN coating increases surface hardness and heat resistance, extending tool life in ferrous and hardened materials. With a 12-degree helix angle and 2-flute configuration, this cutter is suited for finish passes where chip clearance and surface finish quality are priorities. It belongs to the Harvey Tool Runner Cutters series.\u003c\/p\u003e\u003cp\u003eThis tapered ball end mill is intended for use in CNC machining centers and manual mills where access to deep or narrow features requires a tapered tool profile. The small end diameter and short length of cut make it well suited for fine detail work in dies, molds, and complex 3D contours. The 3\/16-inch shank fits standard collets and end mill holders. Machinists and toolroom operators working with hardened steels, stainless, titanium, and similar materials will find the AlTiN finish appropriate for high-temperature cutting environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e20-degree taper angle per side for stable cutting in sloped and contoured features\u003c\/li\u003e\n\u003cli\u003eBall end geometry for smooth 3D surface finish and contour milling\u003c\/li\u003e\n\u003cli\u003eAlTiN coating for elevated heat resistance and extended tool life in hard materials\u003c\/li\u003e\n\u003cli\u003eSolid carbide construction for rigidity and dimensional stability under load\u003c\/li\u003e\n\u003cli\u003e2-flute, 12-degree helix design for effective chip evacuation in finish cuts\u003c\/li\u003e\n\u003cli\u003eRunner Cutters series  -  compact geometry optimized for reach into deep or narrow cavities\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-fit replacement or production tool for CNC machining setups using standard 3\/16-inch collets or end mill holders; part of the Harvey Tool Runner Cutters series for tapered reach applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or toolroom technician. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before changing tooling. Seat the 3\/16-inch shank fully in the collet or holder and torque the retention mechanism per the toolholder manufacturer specification. Verify runout with a dial indicator before cutting, as excessive runout on a small-diameter tool accelerates premature wear and breakage.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTaper Angle Per Side\u003c\/strong\u003e: 20 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Shape\u003c\/strong\u003e: Ball\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall End Diameter\u003c\/strong\u003e: 0.062 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNose Radius\u003c\/strong\u003e: 1\/32 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.198 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 12 degrees\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: AlTiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Runner Cutters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.03 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: HARVEY TOOL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 979902-C3\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HARVEY TOOL","offers":[{"title":"Default Title","offer_id":51741037232434,"sku":"979902-C3","price":97.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ce692f37cfc4380870c8d44f9cf01a61_98b54d06-9e3a-437d-98f9-3267bd674250.jpg?v=1788829013","url":"https:\/\/voomisupply.com\/products\/harvey-tool-979902-c3-tapered-ball-end-mill-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}