Check the listing for details. GRAINGER APPROVED 205-001070 Sq. End Mill,Single End,Carb,1/8" 45XJ22. Condition: New. Listed at 12.89 USD. Square End Mill, 1/8 in Milling Dia., Carbide, Bright (Uncoated), Straight, Length of Cut 1/2 in, Overall Length 1 1/2 in, Shank Dia. 1/8 in, Neck Dia. 0 in Three-flute end mills clear chips more quickly than end mills with more flutes and allow for higher feed rates than end mills with fewer flutes. They also typically have larger cores and are less prone to breaking than end mills with fewer flutes.General purpose carbide square end mills are intended for milling a wide variety of common materials but are not suitable for milling hard materials like titanium or gummy materials like aluminum. Finishing end mills create a finer finish on the workpiece than roughing and roughing/finishing end mills. Carbide end mills provide excellent wear resistance and heat resistance, and they are harder.