Cobra Carbide 23194 Micro Grain Solid Carbide Long Length General End Mill, TiAlN Coated, 4 Flute, 30 Degrees Helix, Ball Nose End, 1" Cutting Length, 1/8" Cutting Diameter, 3" Length (Pack of 1) Solid carbide tools offer long tool life and faster cutting speeds than other substrates, but are more brittle and must be used with rigid toolholding systems Titanium aluminum nitride coatings become self-lubricating when used at very high speeds, making them ideal for cutting without coolant ("dry machining") Round shanks allow use with a wide variety of toolholding systems Center cutting geometry Designed for milling, slotting, profiling and trace milling