YG-1 EH970 Carbide Square Nose End Mill, Long Reach, TIALN Multilayer Finish, Roughing Cut, 45 Deg Helix, 4 Flutes, 2.5" Overall Length, 0.25" Cutting Diameter, 0.25" Shank Diameter

The YG-1 EH970 TiAlN-coated carbide long-reach roughing square nose end mill has a fine pitch, multiple flutes, and a 45-degree helix for machining steel up to Rockwell hardness C45, stainless steel, titanium alloys, and nickel-based alloys. The end mill has chip-breaking cutting edges that create small chips for heavy cuts and remove material in less time than conventional end mills, with minimal vibration (chatter). It produces a rough finish that can be smoothed by a second finishing cut. The long-reach shank provides greater access to recessed areas of the workpiece than tools with a standard shank length. (Feed should be reduced by around 50%.) The number of flutes varies by diameter to optimize the feed and cut rate. The 45-degree helix angle offers increased cutting action compared to end mills with lower helix angles, as it moves excess material quickly up the spiral and away from the workpiece. The tool’s square end creates sharp, unrounded cuts and has a modified corner to strengthen the cutting edges. The center-cutting design has cutting teeth at the end of the tool, so it can be fed into the workpiece like a drill bit.The TiAlN coating resists heat better than TiN and TiCN coatings, increasing tool life and performance. It also offers increased hardness compared to TiN and may reduce the need for lubricants based on the application. The carbide substrate is harder than high-speed or cobalt steel, making it more wear resistant at high speeds and providing longer tool life. Cutting diameter tolerance is + 0.0000 to - 0.0033". The round shank accommodates a range of tool holders. End mills are designed to remove material and create multi-dimensional shapes and profiles. They have cutting edges along the outside diameter and flutes that remove chips from the cutting area and allow cooling fluids to enter. If heat is not reduced effectively, the tool’s cutting edges will dull and additional material buildup can occur. The number of flutes can range from two to eight. Two-flute designs offer the most efficient chip removal, but more flutes provide a smoother finish. The shank is the end of the tool held in place by a tool holder or machine. Center-cutting end mills can create three-dimensional shapes and profiles, and make plunge cuts similar to a drill bit. Non-center-cutting end mills are for applications such as peripheral milling and finishing, but cannot make plunge cuts. YG-1 manufactures drills, taps, end mills, and rotary tooling. The company, founded in 1981, is headquartered in South Korea and has a U.S. office in Vernon Hills, IL.

• Roughing end mills have chip-breaking cutting edges that remove material in less time than conventional end mills
• Fine-pitch tooth design and tool geometry are suitable for machining steel up to Rockwell hardness C45, stainless steel, titanium alloys, and nickel-based alloys
• Long-reach end mills have an extended shank for access to recessed areas of the workpiece
• Titanium aluminum nitride (TiAlN) coating lubricates the end mill for high-temperature stability and abrasion resistance at high cutting speeds, offering better heat resistance than TiN and TiCN coatings
• Carbide can run at higher speeds than high-speed or cobalt steel, resisting wear and high cutting temperatures