lithium brushless screwdriver large torque handheld screw disassembly and assembly electric tool 锂电无刷起子机大扭矩手持螺丝拆装电动工具

1. Product Features

1. This lithium battery brushless screwdriver features a high-performance brushless motor, which eliminates the carbon brush wear and degradation issues associated with traditional brushed motors. It provides rapid response to torque output, making it suitable for large-scale screw removal and installation tasks.
2. The body is equipped with a 360° circumferential high-lumen shadowless lamp, which is arranged at the light output terminals. Full-area lighting can be provided in areas with limited space, such as cabinets and device interiors, without the need for additional lighting equipment.
3. Featuring a slender body structure, it comes with a laser engraving anti-slip ergonomic handle, along with a surface anti-slip texture design for ample grip force, suitable for prolonged continuous handling tasks.
4. Double-bearing concentric shaft transmission structure, with minimal vibration at the output end; good stability during operation of the nozzle, reducing the probability of nozzle slipping or disengagement.
5. 1/4 inch quick-change hex head, easy and convenient for assembly and disassembly. Various standard hex heads can be directly mounted, with high efficiency in component replacement.
6. The wireless lithium battery design eliminates the need for power cables, allowing flexible movement for indoor installation and outdoor repairs.

2. Product Advantages

1. Compared to conventional brushless screwdrivers, brushless motors reduce brush friction losses, lower overall operation heat generation, extend the motor's service life, and optimize operational vibration.
2. 360° ring shadowless light, with no issue of handles blocking the light source; can illuminate screw locations from multiple angles and is suitable for various confined and dim conditions.
3. Quickly replace the hex head, and the head removal and installation can be completed without any additional tools. This effectively improves operational efficiency in large-scale assembly scenarios where heads are frequently replaced.
4. The device has a compact size, allowing it to fit into narrow gaps and restricted spaces within equipment, enabling screw removal and installation in locations that are difficult to reach with ordinary tools.
5. The dual-speed speed control setting allows the rotation speed to be adjusted according to screw specifications, enabling both precise fastening of small screws and quick removal of large screws.
6. Modular detachable lithium battery pack, supports the replacement and connection of backup batteries, reduces downtime caused by waiting for charging, and ensures continuous operation.

III. Product Applications

1. Furniture assembly scenario: panel furniture, cabinets, display cabinets – mass production of screw fastening and removal.
2. Mechanical and electrical maintenance work: removal and installation of screws on power distribution boxes, electrical equipment enclosures, and small mechanical and electrical devices.
3. Interior decoration construction scenario: rapid installation of ceiling components, light steel keels, and gypsum board screws.
4. Metalworking and assembly: Assembly of small metal components, and mass disassembly and reassembly of various standard screws.
5. Outdoor work scenarios: maintenance of screws on outdoor signs and simple supports.
6. DIY manual processing: assembly of handmade products, and screw tightening of small components.
7. Suitable for various standard hex heads; not suitable for heavy-duty operations such as drilling in high-strength thick steel plates.

4. Target Audience

1. Furniture installation specialists, after-sales installation staff for whole-house customization.
2. Electricians and maintenance personnel for mechanical and electrical equipment.
3. Workers involved in construction at the renovation site and ceiling installation.
4. Technician on a small processing plant assembly line.
5. Self-employed individuals, personnel responsible for the installation, removal, and maintenance of store displays and shelves.
6. Team for on-site installation of small outsourced projects.
7. DIY handcraft enthusiasts.

5. Product Attributes

1. Battery voltage: DC 21V
2. Clamping specifications: 1/4" hex quick-change head
3. Idling speed: 0‑650/0‑2000 rpm
4. Maximum torque: 140 N・m
5. Motor type: Brushless motor
6. Special features: 360° surround shadowless lamp, dual-bearing concentric shaft, dual-speed adjustment
7. Machine net weight: 0.75kg
8. Battery type: Removable lithium-ion battery pack

6. Usage Instructions

1. Battery installation: Push the fully charged lithium battery pack into the bottom slot of the device, hearing a click sound indicates the battery is securely locked; to remove it, hold the side clip and pull the battery downward.
2. Head mount installation: Ensure the machine is off, then directly insert the hex head into the 1/4 inch quick-change head, press inward until locked, and gently pull the head to confirm it does not fall off.
3. Speed gear adjustment: Move the speed control lever at the top of the device. The low speed gear is used for precise tightening of small screws, while the high speed gear is used for quick removal of screws.
4. Turn control: Move the middle direction switch button. Moving it to the left indicates forward rotation and tightening; moving it to the right indicates reverse rotation and loosening. Keeping the button in the middle position activates the safety lock, preventing the trigger from being pressed to start.
5. Power-on sequence: After all settings are completed, pull the trigger; the trigger stroke can control the speed of rotation; the surrounding light and shadow-free lights will turn on simultaneously.
6. Task completed: Release the trigger, wait for the output shaft to stop rotating completely, then move the direction switch to the middle safety lock position; press the clamp to remove the tool head; after completing the task, remove the battery and store it separately.

7. Precautions

1. Wear safety goggles at all times during work, as debris may be generated during operations, and avoid any damage to the eyes caused by these debris; it is recommended to wear anti-slip gloves; loose clothing and jewelry are prohibited to prevent getting caught by rotating parts.
2. This machine is primarily designed for screwing operations; it is not suitable for high-strength drilling. Do not force drilling on hard materials to prevent motor overload.
3. Tool operating status; do not touch the rotating nozzle and collet. The tool must be completely stopped before disassembling or reassembling the nozzle and adjusting the equipment.
4. Lithium batteries should be kept away from high-temperature sources and open flames. It is prohibited to puncture the battery pack; when not in use, remove the batteries and store them in a cool and dry place to prevent water ingress and moisture.
5. During prolonged continuous operation, the body shell becomes significantly hot. It is necessary to stop the machine and let it cool down to prevent the motor from overheating and being damaged.
6. Tools must not be used in humid or rainy conditions to prevent electric leakage risks.
7. The equipment must be placed in a location inaccessible to children, and children are prohibited from operating the machine.
8. If the pointer slips or the device makes unusual noises, you must stop using it immediately. Only after identifying and fixing the issue can you continue with the operation.