304 Stainless Steel C Clamp,1 1/2 Inch Tiger Clamp Woodworking Clamp Heavy Duty C Clamps for Woodworking, Welding and Construction,Features Stable Wide Jaws and Protective Pads(2 Pcs)

These items were used on my 80 watt lazer for bed location and they worked out great

Excellent quality !Comes with a wrench!

Good quality ,It does the job really well, its not made cheap7

Great

CONVERT DIMENSIONS TO INCHES AS WELL AS MM

Does exactly what I needed it for. Secure and doesn’t take up a lot of room. Included wrench is very nice touch

These are perfect for what I wanted them to do. I'm using them as temporary feet for Acoustic treatment baffles. One screw through the clamp into a 2x4 and it's plenty sturdy. These clamps are pretty strong and well made. I also added some felt to each side in order to not damage the sleek red velvet finish on my acoustic panels. I'm about to purchase more of these.

These are basically homemade C-clamps like you might make in a home machinist's shop on a budget - a single bolt, a u-shaped piece of flat bar, a bolt and lock nut, and a round pad to squeeze whatever you're clamping down. This is probably the weakest part of the design - the bracing pad is affixed with a single phillips-head screw drilled down the axis of the bolt, and in my case, affixed very loosely. The hole isn't drilled and tapped to go very deeply into the bolt, and seems likely to break if you apply a fair amount of pressure that's off-axis. These would be fine for light usage and light handling, but I would be nervous using them for anything critical.