WEN LA164K 5/8-Inch Keyed Drill Chuck with MT2 Arbor Taper. Product Details Thread Size: M21 Capacity: 0.63 Inches Handle Type: keyed Included Components: 5/8-Inch Keyed Drill Chuck with MT2 Arbor Taper Lock Type: Keyed Integrated Manufacturer: WEN Part Number: LA164K Item Weight: 2.44 pounds Package Dimensions: 6.73 x 2.76 x 2.68 inches Country of Origin: China Item model number: LA164K Shape: taper Item Package Quantity: 1 Cutting Diameter: 0.63 Inches Batteries Required?: No Brand: WEN Material: Chromium Vanadium Steel Item Diameter: 0.63 Inches Item Weight: 1.11 Kilograms Compatible Devices: any MT2 drill press, lathe, or mill Holds drill bits, pen mandrel shafts, and workpieces up to 5/8 inch in diameter Easily open and close the three chuck jaws using the included key Compatible with any MT2 drill press, lathe, or mill Installs easily with the simple tap of a rubber mallet Designed for use with WEN models 3424, 3424T, 3427, 34018, 34027, 34034, 4214, and 4225 Remember when you had the perfect chuck? Secure your bits with the WEN 5/8-Inch Keyed Drill Chuck. Our MT2 arbor taper fits perfectly into any MT2 drill press, lathe, or mill and can be installed with the simple tap of a rubber mallet. The included key securely opens and closes the 3-jaw-chuck around drill bits and shafts up to 1/2 inch in diameter. This set was designed specifically for either the headstock or tailstock of the following WEN wood lathe models: 3424, 3424T, 3427, 34018, 34027, and 34034. It is also compatible with the WEN 4214 and 4225 Drill Presses.