Actually, we've been seeing a lot of calls form independent garage owners who stock multiple kits for their van fleets and often need replacements every quarter or so—the 21-piece kit in a blow-molded case holds up pretty well for daily shop use but they usually don't expect it to survive constant high-torque impacts.

Made from chrome vanadium steel with roughly 47-52 HRC hardness, which puts it better than most budget sets for withstanding repeated ratcheting without rounding off bolt heads like cheaper chrome alloys tend to do, and you're looking at metric sizes from 8mm up to 19mm along with some SAE sizes (though I'd check teh exact range on the COA our company can send).

It'll handle routine brake jobs, suspension work, and engine bay fasteners without issue, but it's really not designed for serious impact driving—the CR-V steel can crack under high-torque pneumatic guns, so you'd want a separate impact socket set for that, and basically anyone needing OEM/ODM runs can get their logo embossed on the case and laser-etched on each socket with a standdard 5-7 day turnaround for custom orders.

One thing most buyers don't think to ask is the blow-molded case weighs just shy of 15kg fully packed, so factor for ceiling storage lifts if you're stocking multiple units per shelf. Also, set ships in smaller batch increments of 25 units or so for retail, but we can do full pallet loads if you need them (usually 4-6 weeks lead time for OEM runs).
The sockets are made from chrome vanadium steel and hardened to professional-grade specs that meet JIS, ANSI, and DIN standards. We don't publish the exact HRC value on the datasheet, but we can share the heat treatment certificate with your order.
For OEM/ODM orders with your logo or custom packaging, the MOQ is typically 500 sets. We can discuss smaller trial runs if you're just starting out—just let us know your target quantity.
Yes, we include copies of all four certifications—RoHS, CCC, CE, and GS—with every shipment. Just request them when you place the order, and we'll attach them to the packing list.
Each socket and accessory has its own custom-cut slot in the 540×300×113mm blow molded case, so everything stays organized and secure. The case is designed for easy tool access during automotive repairs.
The kit covers standard 1/4-inch, 3/8-inch, and 1/2-inch drive sizes with a range of metric and SAE sockets. For the exact size breakdown, send us a quick message and we'll email you the full spec sheet.