JORGENSEN 150 mm Woodworking Clamps 4-Pack (convertible up to 400 mm ratchet bar clamps)
Product description
If you do regular woodworking (or handy DIY projects) you’ll know the same problem comes up fast: one clamp opening just doesn’t cover every job. This JORGENSEN 4-pack is built around a simple idea—start with 150 mm clamps, but splice them together so you can reach a wider clamping range when you need it.
That “two clamps become one longer clamp” approach is the headline here. Over the bar it’s also quick to adjust with a one-handed quick release button, and the jaw pads are designed to grip without chewing up the surface.
It’s not a high-end, workshop-only system, but on paper it makes a lot of sense if you want flexibility without needing a whole wall of oversized clamps.
The essentials
This set is a 4-pack of JORGENSEN woodworking clamps described as ratchet bar clamps, with quick release and a mechanism that lets you convert the clamp into a spreader if you’re trying to push two pieces apart. The base clamp opening is stated as 150 mm, with a supported “applicable into 400 mm” concept that lets you join two 150 mm clamps together to create a clamp range up to 400 mm.
The spreader function is tied to the stated spread capability: the description mentions a 290 mm spread. There’s also a throat depth figure of 62 mm from the bar top of the pad.
Load limit is listed as 68 kg, which is the sort of specification you’ll want to keep in mind if you’re planning to apply heavy force or you’re working with tougher assemblies.
What stands out in day-to-day use
The quick release and one-handed adjustment is the part you’ll notice immediately. The set is described as having a quick-release button: press it and you can move the distance freely, which should make positioning the jaws much less fiddly.
There’s also a conversion path: if you need to spread rather than clamp, you press the push button and move the fixed jaw to the opposite end of the bar. In other words, the clamp isn’t just for pulling parts together—it’s also intended for spacing work.
And those soft rubber pads are meant to increase contact area and provide a sure grip without scratching or marring the workpiece surface. That matters if you clamp painted timber, varnished panels, or anything where you don’t want crisp clamp marks.
Key things to consider before you buy
The main limitation to be aware of is the “max” range relies on joining two 150 mm clamps together. That means you’re getting 400 mm range by using the system as intended, not by expecting each individual clamp to be that wide on its own.
Also, while the load limit is stated as 68 kg, this is described as a set of light duty clamps in the write-up. So it may be best viewed as a practical, flexible kit for everyday woodworking and DIY rather than something you’d choose when you want maximum clamp force and ultra-demanding industrial performance.
Lastly, throat depth is listed (62 mm from the bar top of the pad). If your projects involve very bulky workpieces or unusual geometry, it’s worth mentally matching that clearance to what you’re planning to clamp.
Quick sizing and fit for common jobs
On a typical glue-up, for example, you might start with the 150 mm opening for smaller panels or frames. When you’re joining a wider section and standard clamp openings start to feel tight, the “splice” idea becomes useful: you can bring two 150 mm clamps together so the combined clamp range reaches up to 400 mm.
That kind of flexibility is exactly where a 4-pack can earn its keep—more of your jobs get covered with the same kit, rather than you reaching for a larger clamp every time.
Who it suits (and who should skip it)
It’s a good fit if you want a compact clamp set that can cover both shorter and longer glue-ups, and you like the convenience of one-handed quick adjustment.
It might not suit you if your workshop demands heavy-duty clamping for dense, high-stress work, or if you specifically need very deep throat clearance beyond what’s stated.
If you’re the sort of buyer who already owns a few larger clamps and mainly wants a reliable “do most jobs” set, this could slot in nicely. If, however, you’re building a system around maximum force and lots of deep, wide clamping, this one stays more in the practical/mid range lane.
Pros
- Quick release button and one-handed adjustment for easier positioning
- Designed to convert from clamp to spreader for pushing parts apart
- Soft, rubber pads intended to grip and help avoid marring surfaces
- Connect-two-clamps concept that extends opening range up to 400 mm
Mini FAQ
Is this set only for clamping?
No. The description explains it can be converted into a spreader by pressing the push button and moving the fixed jaw to the opposite end of the bar.
How does the 400 mm opening work?
The write-up says you can join two 150 mm clamps together using the stated patented technology so they create a 400 mm clamp opening range.
Will it scratch delicate surfaces?
The pads are described as soft and rubbery, intended to offer a sure grip and not scratch or mar the workpiece surfaces.
What load should I expect?
The stated load limit is 68 kg. The description also calls them light duty clamps, so it’s worth keeping that in mind for heavier jobs.
Is it worth it?
If you want a flexible 4-pack for everyday woodworking—especially glue-ups where you sometimes need a wider clamp range—this JORGENSEN system is worth considering thanks to the quick-release, one-handed adjustment, soft pads, and the connect-two-clamps idea that extends the opening capacity.
Buy it if your projects regularly move between smaller and wider work, and you’d benefit from having clamp-and-spreader behaviour in one tool style.
You may want to skip it if you need consistently large clamp openings without joining units, or if your work leans heavily into demanding, high-force clamping where light duty specs could leave you wanting more.