he DongCheng DCPB358 Cordless Brushless Impact Wrench is a powerful fastening tool designed for automotive repairs, machinery maintenance, construction, and professional workshop applications. Powered by a 20V MAX battery platform, it delivers up to 358Nm of fastening torque and features a brushless motor for efficient performance.

Equipped with a 12.7mm (1/2-inch) square drive, two-mode speed and torque control, and a smart-loosen function, this impact wrench provides versatility for different fastening and loosening tasks. Its compact 129mm body is designed to improve accessibility and handling in confined workspaces, while the nut-busting torque of up to 500Nm supports demanding bolt-removal applications.

Key Features

Brushless Motor: Delivers efficient performance with up to 358Nm fastening torque.
20V MAX Battery Platform: Provides cordless mobility for workshop and on-site work.
Two-Mode Control: Offers low and high speed and torque settings for different working conditions.
Smart-Loosen Mode: Helps prevent nuts from dropping accidentally during loosening.
Compact 129mm Body: Supports access and control in narrow spaces.
Maximum Nut-Busting Torque of 500Nm: Assists with loosening stubborn fasteners.
1/2-Inch Square Drive: Compatible with suitable 12.7mm impact sockets.
M12–M18 Bolt Compatibility: Designed for the specified standard bolt size range.

Applications

Automotive repair and servicing.
Tightening and loosening nuts and bolts.
Machinery installation and maintenance.
Construction and equipment assembly.
Industrial and mechanical workshops.
Fastener removal in confined workspaces.
Maintenance of vehicles and machinery using compatible fasteners.

Technical Specifications

Specification	Details
Brand	DongCheng
Model	DCPB358
Product Type	Cordless Impact Wrench
Motor Type	Brushless
Battery Platform	20V MAX
Battery Configuration	4.0Ah × 2 / 5.0Ah × 2 / Solo, depending on variant
Maximum Power Output	400W
Standard Bolt Size	M12–M18
Square Drive Size	12.7mm (1/2 inch)
Low-Speed Range	0–2,000 RPM
High-Speed Range	0–2,400 RPM
Low Impact Frequency	0–2,900 impacts/min
High Impact Frequency	0–3,200 impacts/min
Low Torque Setting	300Nm
High Torque Setting	358Nm
Nut-Busting Torque	500Nm
Body Length	129mm
Control Modes	2
Special Function	Smart-Loosen
Net Weight	1.7kg / 1.7kg / 1.1kg, depending on variant

Package Details

Package contents vary by model variant.

Type EM: 4.0Ah Battery Packs × 2, 2A Charger
Type FK: 5.0Ah Battery Packs × 2, 4A Charger
Type Z: Solo version (without battery and charger)

Common listed accessories and packaging:

Socket
Belt Clip
Plastic Case Packing

DongCheng DCPB358 20V MAX Cordless Brushless Impact Wrench, 1/2-Inch Square Drive with 358Nm Fastening Torque, 500Nm Nut-Busting Torque and Smart-Loosen Function

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