Cobra Carbide 29406 Micro Grain Solid Carbide Regular Length Hi-Performance End Mill, TiAlN Coated, 6 Flute, 45 Degrees Helix, Square End, 3/4" Cutting Length, 1/4" Cutting Diameter, 2-1/2" 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 Multi flute design allows for less chatter and vibration free operations Lighter chip load per tooth increases tool life and providing better finish