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The SZ-28 Brushless Rotary Hammer is a high-performance cordless tool engineered for demanding drilling and chiseling applications. Powered by a 21V dual-battery system (2×4.0 Ah included), it ensures extended runtime and consistent power delivery. With a no-load speed of 900 RPM and an impact rate of 4500 BPM, the SZ-28 delivers an impressive impact energy of 3.5 Joules, enabling efficient drilling in concrete and masonry up to 28 mm in diameter.
Featuring a versatile function switch between hammer drilling and chiseling modes, the SZ-28 offers flexibility for various demolition and construction tasks. Its brushless motor, designed with 1.1 mm wire and 9 turns, enhances durability and operational efficiency. Under no-load conditions, the tool operates at 14.5 A and provides approximately 17 minutes of continuous use per battery.
Ideal for both professional and heavy-duty DIY use, the SZ-28 Brushless Rotary Hammer combines power, endurance, and ergonomic design for superior performance in challenging environments.
| Battery Voltage | 21V |
| Battery Capacity | 4.0/6.0/8.0Ah |
| Drilling Capacity | 28mm |
| Rated Speed | 900r/min |
| lmpact Capacity | 3.5J |
| lmpact Frequency | 4500bpm |
| Net Weight | 4.28kg |
Nantong Great
Tools Co., Ltd.
Nantong Great Tools Co., Ltd.
is Custom 21V Lithium Battery Double Shock Absorption Brushless Rotary Hammer Suppliers and OEM 21V Lithium Battery Double Shock Absorption Brushless Rotary Hammer 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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+86-13801463308
+86-13862872268
Nantong,Jiangsu,China
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