Drill Chuck, Key Type Drill Plus Adapter Drill Adapter 3.0 to 16mm Chuck Adapter Shank Adapter for Drill Bit

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 gripping. 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 gripping. The clamping are specially treated to improve wear resistance. 3-16mm 1Celsius2-20UNF:  3-16mm denotes that clamp the drill between 3mm and 16mm, and 1Celsius2-20UNF represents a screw hole with 1Celsius2-20UNF at the back of the chuck. Specification:  Clamping range: 3-16mm Celsius 0.12-0.63in Package List: 1 * Drill Chuck 1 * Key 1 * Electric Hammer Shank Adapter Note: