With all 5 collet sizes in both imperial and metric—1/8'', 1/4'', 5mm, 6mm and 8mm—the Shaper CNC Essential Collet Kit will equip you for CNC routing with just about any bit. Don't rely on after-market adaptors or sleeves that can jeopardize your cut quality, cutter and project. Get the collets that are designed for use with Origin. This 5-piece collet set includes a Shaper Micro-Systainer with customized foam insert to protect and store your collets.