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21V Lithium Battery Cordless Brushless Impact Wrench

The SZ-450 is a 21V brushless lithium battery-powered impact wrench with forward/reverse rotation capability and adjustable high-low speed settings. It delivers precise torque for various screws and materials, making disassembly, assembly, and debugging tasks effortless.
The device features ergonomic rubber handles for secure grip and slip-resistant safety, reducing hand fatigue during prolonged operation.Equipped with an intelligent disassembly key that automatically detects screw conditions and optimizes disassembly steps for hassle-free operation.
Low speed is suitable for fine operations such as small screws, while high speed enables rapid batch tightening of bolts, resulting in higher efficiency.It is widely used in automotive repair, furniture assembly, and construction projects.


  • Impact Gear in forward and reverse mode, you can choose high-speed/low-speed gears to adapt different materials or screws
  • High efficiency, brushless motor
  • Rubber handles, handheld comfort
  • Intelligent disassembly key
  • 2-speed mode
  • Very compact and well balanced
  • Several easy-to-use working modes: easier screw tightening, adapt to different work needs.
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The SZ-450 21V Lithium Battery Cordless Brushless Impact Wrench supports forward and reverse modes, and users can flexibly choose high and low speed gears according to specific needs. This design enables optimal torque output and work efficiency when handling different materials or screws. Whether in the process of tightening, disassembly or adjustment, the SZ-450 can easily cope with it and meet various work requirements.
In order to improve the comfort of operation, the SZ-450 is equipped with an ergonomically designed rubber handle to ensure a good grip and controllability during long-term use. This design not only reduces hand fatigue, but also enhances the tool's anti-slip performance and improves overall safety. The impact wrench also has an intelligent disassembly key function that can automatically identify the type and status of the screw and optimize the disassembly process.
The two-speed mode of the SZ-450 provides users with more choices. In low-speed mode, the tool is suitable for delicate work, such as the tightening and removal of small screws; while in high-speed mode, users can quickly complete large-scale tightening tasks. This flexibility enables the SZ-450 to be widely used in many fields such as automobile repair, furniture assembly, and building construction.

Battery Voltage 21V
Battery Capacity 4.0/6.0Ah
Square Tenon Size 12.7(1/2)mm
No-Load Speed 0-2000/2500r/min
Maximum Torque 250/450N.m
lmpact Frequency 0-2400/2900bpm
Net Weight 1.03kg
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ABOUT

Nantong Great
Tools Co., Ltd.

Nantong Great Tools Co., Ltd. is Custom 21V Lithium Battery Cordless Brushless Impact Wrench Suppliers and OEM 21V Lithium Battery Cordless Brushless Impact Wrench Factory, which specializing in the export trade of cordless tools and cable tools. We are committed to providing high-quality and reliable products to global customers, meeting the needs of different industries, and providing customers with one-stop procurement services and high-quality after-sales support. Our products have been exported to multiple countries and regions around the world, including Europe, South America, Southeast Asia, Middle East, etc.

We mainly produce brushless tools and some high-level quality cable tools. In addition, our company has established stable cooperative relationships with some well-known brand in the market. We are providing a variety of product choices and customization services.

"Integrity, innovation, cooperation and win-win" is the company's business philosophy, and "customer first" is the company's service tenet. We have rich international trade experience and a professional team. We are dedicated to providing you with satisfactory services and high-quality tools, and look forward to cooperating with you in the future.

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