



Dongcheng Impact Wrench 1/2 inch - DPB12
- Manufacturer: Jiangsu Dongcheng M&E Tools Co., Ltd.
- Model: DPB12
- Rated Power: 300 W
- Square Drive: 1/2 inch (12.7 mm)
- Max Fastening Torque: 188 N·m
- Bolt Capacity: M8–M12
- No-load Speed: 1,800 r/min
- Net Weight: 2.1 kg
Dongcheng Impact Wrench 1/2 inch (DPB12) is a compact 300 W corded impact wrench delivering up to 188 N·m of fastening torque through a 1/2-inch square drive. It's built for the everyday nut-and-bolt work that a spanner makes slow going — tyre changes, machinery servicing, scaffolding, and workshop assembly.
At 2.1 kg it's genuinely light for an impact wrench, which matters when you're working at arm's length or overhead on scaffold and elevator installation. The gear housing is aluminium alloy for durability under repeated impact loading, and a rocker-type reversing switch lets you flip between tightening and loosening without changing grip. Bolt capacity runs M8 to M12.
Key Features
- 188 N·m max torque: Breaks loose seized nuts a hand spanner won't shift
- Aluminium alloy gear housing: Robust under repeated impact loading
- Rocker-type reversing switch: Switch between tighten and loosen without regripping
- 2.1 kg light body: Comfortable for overhead and extended-reach work
- Corded power: Consistent torque all day with no battery to run flat
Technical Specifications
Technical Specifications (Quick Reference)
| Specification | Details |
|---|---|
| Model | DPB12 |
| Rated Power Input | 300 W |
| No-load Speed | 1,800 r/min |
| Impact Frequency | 2,000 /min |
| Square Drive | 12.7 × 12.7 mm (1/2") |
| Max Fastening Torque | 188 N·m |
| Bolt Capacity | M8–M12 |
| Net Weight | 2.1 kg |
| In the Box | Socket 18 × 12.5L, socket pin, O-ring, carbon brushes |
Recommended Applications
Where this wrench fits best
- Automotive servicing: Wheel nuts, suspension bolts, and general garage work
- Scaffolding: Rapid assembly and strike-down of clamp fittings
- Machinery maintenance: Mounting bolts and equipment servicing
- Elevator and steel installation: Structural fastening at height
- Workshop assembly: Repetitive bolting where a spanner is too slow
1) What bolt sizes can this handle?
It's rated for M8 to M12 bolts at up to 188 N·m of fastening torque. For larger fasteners, step up to the 3/4-inch DPB22C.
2) Will standard sockets fit?
It takes any 1/2-inch (12.7 mm) square drive impact socket. Always use impact-rated sockets — chrome hand sockets are not designed for impact loading and can shatter.
3) Can I use it to tighten wheel nuts to a specific torque?
Use it to run nuts down quickly, then finish with a torque wrench to the manufacturer's figure. An impact wrench cannot set a precise torque value, and over-tightening wheel nuts stretches studs.
4) Is it corded or battery powered?
Corded. That means consistent torque for as long as you need it with no battery to charge or degrade — the trade-off is you need a socket nearby.
5) How does this compare to the 3/4-inch DPB22C?
The DPB12 is the lighter, lower-torque tool for M8–M12 work and general servicing. The DPB22C is a heavy-duty 3/4-inch machine for structural steel, large plant, and truck work. Choose on the bolt sizes you actually handle, not on maximum torque.
- Return within 24 hours of delivery for:
- Damaged or defective product
- Wrong or missing item
- Product cannot be returned once installed or used
- Refer to Refund Policy for complete details
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