Feature: 1. With strong driving force and fast drilling speed, effectively improve work efficiency. 2. Continuously variable speed makes it work normally and reduces the heat of the machine in use. 3. Free switching between positive and negative modes can meet different working conditions. 4. Wide range of applications, suitable for iron plate, aluminum stainless steel, furniture board, plastic board, cardboard, etc. 5. The rated input power of the product is 250W, and the maximum drill bit diameter is 13mm. Specification: Item Type: Electric Screwdriver SetProduct Model: TB052 Rated Input Power: 250W Maximum Drill Diameter: Approx. 13mm / 0.5in No-Load Speed: 0-1500rpm Power Supply Voltage: AC110-240V Product Voltage: 20V Power Supply Type: Rechargeable-lithium battery technology Battery Information: Rechargeable lithium battery, 16800mAh Use Time: About 150 minutes Whether with CW and CCW: Yes Chuck Diameter: Approx. 13mm / 0.5in Drill Bit Clamping Method: Drill chuck The Electric Drill Speed Whether Adjustable: Stepless speed regulation Standard Accessories: Two batteries and one charge Screw: Suitable for home assembly, electrical maintenance according to requirements Metal: Suitable for iron plate, aluminum stainless steel, etc. Wood: Suitable for furniture board, plastic board, cardboard.. Package List: 1 x Electric Screwdriver2 x Battery Box1 x Adapter1 x User Manual Note: 1. When operating, the operator should pay attention to whether the accessories are intact, whether the insulated cable is damaged, whether there is aging, etc. After the inspection, plug in the power source before proceeding.2. During cutting and grinding operations, there should be no people and explosives within one meter around, and do not work in the direction of people to prevent casualties.3. When the grinding wheel is used up and needs to be replaced, the power supply must be cut off to replace it, in case the switch is pressed accidentally, causing unnecessary personnel accidents.4. When working with dangerous and flammable materials, more than two fire extinguishers must be equipped to prevent problems. Achieve the principle of safety first and production second.5. If you use it after a long period of 30 minutes, you should stop resting for more than 20 minutes, and work after it cools down. To prevent the temperature from being too high during long‑term use, which is easy to damage and cause industrial accidents.6. When in use, we must use it in accordance with the use specifications and instructions, and perform regular inspections, maintenance, and ensure that the work is in good condition to reduce the occurrence of accidents.7. 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.