20V Cordless Electric Ratchet Wrench | 3/8" & 1/2" Square Drive, 50–70N.m

The Dawei 20V cordless electric ratchet wrench makes bolt tightening and loosening faster and easier than a manual ratchet. Choose the compact 3/8" (9.5mm) ratchet for light fastening work, or the more powerful 1/2" (12.7mm) brushless ratchet wrench with up to 70N.m loosening torque and impact action. Both models are widely used for stage scaffolding assembly and fire protection pipe bolt installation.

Key Features

• Two drive sizes: 3/8" (9.5mm) for compact work and 1/2" (12.7mm) for larger bolts and higher torque.

• Up to 50N.m tightening torque on both models, and up to 70N.m loosening torque on the 1/2" model.

• Brushless motor (1/2" model): 500W rated power, higher efficiency and longer service life than brushed motors.

• Impact action at 1,100 bpm (1/2" model): helps break loose stubborn bolts faster.

• Ratchet design: work in tight spaces without repositioning the tool.

• 20V lithium battery platform: every kit includes 2 batteries and a charger, so one battery can charge while the other works.

• Cordless and portable: ideal for elevated work, scaffolding and sites where no power outlet is available.

• Plastic carry case included for storage and transport.

Technical Specifications & Model Comparison

Which Model Should You Choose?

• 3/8" ratchet wrench (brushed): a compact, cost-effective tool for light fastening work. Comes with a set of sockets, ready to use out of the box.

• 1/2" brushless ratchet wrench: more power (500W), higher torque, impact action and larger 3.0Ah batteries. Best for professional or daily heavy-duty work on M5–M12 bolts. Sockets are sold separately, and 8–19mm sockets are recommended.

Approximate battery energy: 1.5Ah ≈ 30Wh and 3.0Ah ≈ 60Wh per battery (20V × Ah). Actual runtime depends on bolt size, torque and operating habits.

What's in the Box

• 1 × 20V cordless electric ratchet wrench (3/8" or 1/2" model)

• 2 × 20V lithium batteries (1.5Ah or 3.0Ah, depending on model)

• 1 × 20V 0.6A charger

• 1 set of socket accessories (3/8" model only)

• 1 × plastic carry case

Applications

• Stage scaffolding and truss assembly

• Fire protection pipe and pipe clamp bolt installation

• Steel structure and scaffolding assembly

• Equipment installation, maintenance and repair

• Automotive and machinery repair in confined spaces

OEM / ODM & Wholesale Supply

Dawei Metal is a hardware tools manufacturer and exporter based in Jinan, Shandong, China. We supply cordless ratchet wrenches to distributors, brand owners and wholesalers in Europe, America, Southeast Asia and the Middle East. We can discuss custom logo, color, battery configuration and packaging. Contact us for MOQ, sample and price information.

Frequently Asked Questions

What is the difference between the 3/8" and 1/2" models?

The 3/8" model is a compact brushed ratchet with 50N.m max torque and 220W output. The 1/2" model is brushless with 500W rated power, 50N.m tightening torque, 70N.m max loosening torque and 1,100 bpm impact frequency.

What bolt sizes can the 1/2" model handle?

It is rated for standard bolts M5–M12 and high-strength bolts M5–M10. We recommend sockets from 8mm to 19mm.

Are sockets included?

The 3/8" model includes one set of socket accessories. The 1/2" model is supplied without sockets.

Does the kit include batteries and a charger?

Yes. Each kit includes two 20V lithium batteries (1.5Ah or 3.0Ah) and a 20V 0.6A charger, packed in a plastic case.

Can I order with my own brand or custom packaging?

Yes. OEM/ODM orders are welcome. Please send us your requirements for logo, color and packaging.

Get a Quote

Tell us the model, quantity and destination country, and we will reply with pricing and lead time.

• WhatsApp / Tel: +86 156 6628 5386

• Email: dwhardwaretools@gmail.com

• Send an inquiry online

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