• Two-flute HSS design makes easy work out of tough materials
• Includes 1/8, 3/16, 1/4, 5/16, 3/8, 1/2, 9/16, and 5/8-inch end mills
• Each bit comes prepackaged in a resealable case for protection and organization between uses
• Compatible with the WEN 33013 Metal Milling Machine and the WEN 33182A R8 Collet Set
• Universal design fits any collet set available on the market (required for operation)