Long Service Life: The product is mainly made of aluminum alloy, aluminum, and steel, and is processed by sandblasting, anodizing and chrome plating, which has high hardness, high wear resistance, anti-corrosion, anti-rust performance, and long service life High Precision: The high precision double linear bearings ensure a precise fit between the body and the column. At the same time, the one-piece chuck linkage enables it to run more smoothly and drill more steadily, while ensuring rotational accuracy. In addition, the whole product can be lifted up and down to fit the volume of the processed items more closely, thus bringing you a more delicate operation 7-speed Adjustment: The product can freely adjust 7 speeds (12V-2000rpm, 15V-2500rpm, 16V-2666rpm, 18V-3000rpm, 19V-3166rpm, 20V-3333rpm, 24V-4000rpm) depending on the voltage, so you can process crafts more delicately Powerful Clamping Power: The precision steel 3-jaw drill chuck can clamp any object between 0.03-0.24in. This powerful clamping force will provide you with greater safety in use Easy to Operate: The desktop design and the way of pushing the handle for operation are more time-saving and labor-saving, which is easier to operate than hand-held drills, Manufacturer: XZXXZSZ