100% brand new and high quality Features: Made of #45 steel, sturdy, durable, high hardness and wear resistance, great for a long-term using period. With high precision, high gripping force, high reliability and stability, which this drill chuck has good durability Self-tightening and keyless feature, it is mainly used in drilling machine and lathe machine. Tool-free operation and 1-16 mm clamping range, easy to operate. Fit for almost all drilling and lathes with MK2 mount. Specification: Material: #45 steel Size: Drill chuck: a.10 x 5cm/3.94 x 1.97in b.10 x 4.2cm/3.94 x 1.65in Chuck arbor: 11.5 x 1.5cm/4.53 x 0.59in Nut diameter: 2.5cm/0.98in Color: As picture shown Quantity: 1 Set Note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Drill Chuck 1 x Chuck Arbor