OSG Carbide Variable Helix End Mill Square Edge - Weldon Shank TiSlN Coated - For Exotics, Nickel & Titanium Alloys - 16mmThe OSG Carbide Variable Helix End Mill with a square edge design, Weldon shank, and TiSlN coating is a specialized tool designed for machining exotic materials, nickel, and titanium alloys. Its variable helix geometry ensures reduced vibration and enhanced stability during machining. The TiSlN coating adds durability and wear resistance, making it ideal for demanding operations in these challenging materials. This end mill is a top choice for