90 Degree Clamp, Corner clamps, (3" 4") x 8 Right Angle Clamp, Clamping Square Positioning Squares Woodworking Tool for Cabinets, Pictures Frames, Boxes

Works great but would work better if the lumber was milled. Unmilled lumber makes it somewhat difficult but still works

So if you have your own set of clamps just buy the positioning squares alone, they have that option. The clamps they include are hot garbage. Can easily break them by over tightening and they don't apply even pressure that can dent or leave marks on any softwoods.

The angles are sturdy and clamp well without any flexibility. The dogs are difficult to remove after applying pressure, I used my spring clamps instead of the dogs provided.

Works well with other clamps and with the clamps provided

Not the squares I'd hope I did trim them to be square i find that the clamps slide out to easily. Mine went in the trash, chalked up as a lost.

THEY DO NO SQUARE UP THE PIECES YOU ARE JOINING. THE PIECE THAT FITS AGAINST THE WOOD SHOULD BE FLAT, INSTEAD IT CREATES AN ANGLE LEAVING A GAP ON THE UNDERSIDE

the largest one is not 90 degrees... the two smaller are perfect

Nice