Product Overview
Designed for automotive repair, machinery maintenance, and tight-space fastening, the PB-8 Compact Brushless Impact Wrench delivers professional-grade power in a lightweight, ergonomic body. Powered by a 500W high-efficiency brushless motor, it generates 140N.m fastening torque and 240N.m max breakaway torque at a rapid 4000 BPM impact rate. With a 1/2″ (12.7mm) square drive, 3200 RPM rated speed, and optimized compatibility for M5–M12 standard bolts, this mini wrench maximizes productivity while reducing operator fatigue. Ideal for global distributors, auto service chains, and B2B buyers seeking reliable OEM/ODM cordless fastening tools.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | PB-8 |
| Fastening Torque | 140 N.m |
| Max Nut-Breaking Torque | 240 N.m |
| Impact Rate | 4000 BPM |
| Rated Power | 500W |
| Rated Speed | 3200 RPM |
| Square Drive | 12.7mm (1/2 inch) |
| Bolt Capacity | Standard: M5 |
| Recommended Socket Range | 8–19mm |
| Motor Type | Brushless DC |
Key Features
240N.m Breakaway Power: Quickly removes rusted, over-torqued lug nuts and heavy fasteners without stalling.
4000 BPM High-Frequency Impact: Delivers rapid, controlled blows for faster tightening & reduced cam-out.
500W Brushless Motor: 30% longer runtime, zero carbon brush replacement, cooler operation & extended lifespan.
Compact & Lightweight Design: Mini body fits easily into engine bays, chassis gaps & confined workspaces.
1/2″ Square Drive & 8-19mm Sockets: Perfectly matched for M5–M12 standard bolts and M5–M10 high-strength bolts.
Job-Site Ready: Anti-slip soft grip, forward/reverse switch, LED work light & battery fuel gauge for all-day efficiency.
Why Choose Us?
Factory-Direct Supply: 10+ years in cordless tool manufacturing with lean production & competitive FOB pricing.
Export-Grade Compliance: CE, RoHS, FCC, UKCA certified. 100% pre-shipment torque calibration & load aging test.
Flexible OEM/ODM: Custom branding, colorways, packaging, voltage platforms & battery adapter development.
Global Trade Support: FOB/CIF/DDP terms. Samples in 3-5 days, bulk production in 15-25 days.
Reliable After-Sales: 12-month tool warranty, 6-month battery warranty, spare parts kit & 24/7 technical support.
FAQ
Q1: What is the MOQ for wholesale or OEM orders?
A: Neutral packaging starts at 50 pcs. Custom OEM/ODM orders require 200 pcs. Test samples are available.
Q2: Is this sold as a bare tool or complete kit?
A: Both options available. Kits include 2× Li-ion batteries, fast charger, socket set (8-19mm), extension bar & BMC case.
Q3: Can you match our existing battery platform?
A: Yes. We support cross-brand battery adapter development and custom voltage configurations upon request.
Q4: How do you guarantee torque accuracy for bulk shipments?
A: Every unit undergoes digital torque calibration, 30-min continuous impact aging, and vibration testing. QC reports & video inspections provided.
Q5: What are your payment & shipping terms?
A: T/T (30% deposit, 70% before shipment), L/C, or Alibaba Trade Assurance. Shipped via sea, air, or express worldwide.
Ready to upgrade your automotive tool catalog? Contact us for the latest FOB pricing, spec sheets, and free samples.




