YG-1 E9983 High Speed Steel (HSS) Square Nose End Mill, Weldon Shank, Uncoated (Bright) Finish, 30 Deg Helix, 2 Flutes, 3" Overall Length, 0.5" Cutting Diameter, 0.5" Shank Diameter

The YG-1 E9983 uncoated powdered-metal high-speed steel square nose end mill has two flutes, a center-cutting design, and a 30-degree helix angle for machining on hardened steel up to Rockwell hardness C45. The two flutes have better chip-carrying capacity than end mills with more flutes while offering additional support when the tool goes deep into the material in applications with a high depth of cut. The tool’s square end creates sharp, unrounded cuts. 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 30-degree helix angle supports general-purpose applications. It balances lower angles’ strong cutting edge for difficult-to-machine materials with higher angles’ increased cutting action.Powdered-metal high-speed steel is tougher and more shock resistant than conventional high-speed steel and cobalt steel for higher productivity. This tool has no coating or surface treatment. Cutting diameter tolerance is + 0.0010 to - 0.0000" for end mills with a different shank and cutting diameter and + 0.0015 to - 0.0000" for end mills with the same shank and cutting diameter. This tool has a Weldon shank. 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 and sells drills, taps, end mills, spade drills, and rotary tooling. The company was founded in 1981. YG-1 maintains its headquarters in Vernon Hills, IL.

• Suitable for machining on hardened steel up to Rockwell hardness C45
• Two flutes offer better chip-carrying capacity than end mills with more flutes, enhancing the tool’s ability to remove material
• Powdered-metal high-speed steel is tougher and more shock resistant than conventional high-speed steel and cobalt steel
• Square nose end mills (also called square end) create sharp, unrounded cuts
• Center-cutting design allows the end mill to plunge into material like a drill bit while also performing conventional surface milling