3.0-16MM Key Type Drill Chuck With 1/2-20UNF Thread and Hex Head Adapter

• High-accuracy thread and tapered holes can be tightly attached to the tool.
• The housing is treated with electrophoretic paint, making the product anti-rust even in worst environment.
• By using anti-thrust bearing to convert key-applied torsion into superior gripping.
• The clamping jaws are specially treated to improve wear resistance.
• 3-16mm 1/2-20UNF: 3-16mm denotes that clamp the drill between 3mm and 16mm, and 1/2-20UNF represents a screw hole with 1/2-20UNF at the back of the chuck.

Features: High-accuracy thread and tapered holes can be tightly attached to the tool. The housing is treated with electrophoretic paint, making the product anti-rust even in worst environment. By using anti-thrust bearing to convert key-applied torsion into superior gripping. The clamping jaws are specially treated to improve wear resistance. 3-16mm 1/2-20UNF: 3-16mm denotes that clamp the drill between 3mm and 16mm, and 1/2-20UNF represents a screw hole with 1/2-20UNF at the back of the chuck. Specification: Clamping range: 3-16mm / 0.12-0.63in Package List: 1 * Drill Chuck 1 * Key 1 * 1/4 Hex Head Adapter Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.