We’ve been running these through our own torque-testing rig before shipment—batch-to-batch consistency on the box joint has held within 3% tolerance over last six orders, which is tighter than most generic wrenches we’ve seen.


The 12-inch stainlss steel body handles twisting and fine, but it’s really not built for heavy-duty crimping day in and day out; we usually recommend a dedicated tool for that. 3. Each batch gets a COA form our in-house lab, and we’ll retest at no charge if you flag any deviation within 30 days of receipt—just note the lead time for retesting is usually 2-4 weeks (check current turnaround before ordering).

Plastic hanger packging is standdard, but if you’re doing OEM runs—MOQ is 500 units—you can switch to a color box or custom hanger color without extra tooling fees. 5. Also, the handle color options are basically a checkbox on the order form, but we’ve found most buyers go with the bright orange or yellow for job-site visibility.


What it does is give you a solid 300mm wrench with straight shaft and box joint that’s consistent enough for plumbing and building decoration—roughly 95% of our clients reorder within 60 days or so.
We typically start at 500 pieces for OEM orders, but we can be flexible depending on your needs. Just reach out with your quantity and we'll see what we can do.
We can provide material test reports for the stainless steel and a certificate of conformity. If you need specific certifications like CE or ISO, let us know and we can arrange them for your order.
Yes, we offer colorful handle options—just tell us your preferred color. For standard color swaps, there's usually no extra charge, but custom Pantone matching may have a small fee.
The plastic hanger is included and is perfect for retail display. We can definitely print your logo on the hanger or the color box—just send us your artwork and we'll handle the rest.
For a standard 500-piece order, lead time is around 25-30 days after deposit. Larger orders may take a bit longer, but we'll give you a precise timeline once we confirm the specs.