KINJOEK 6 PCS 4 Inch 90 Degree Positioning Squares, Right Angle Clamps Woodworking Carpenter Corner Clamping Square Tool for Picture Frames, Boxes, Cabinets or Drawers, Red

Inexpensive, rigid polymer corner squares to check, clamp and hold your project square and in position until the glue sets or your operations are completed. Corners feature a bevel to prevent glue that seeps out of the joints from contacting the square, or debris from preventing the device from fitting tightly into corner joints. Cross-bracing on the block adds strength without adding weight, allowing you to clamp any edge you like. Material seems to be resistant to most adhesives, making cleanup a breeze. Corner clamps are expensive and bulky and will not fit into way too many applications...these handy squares are a brilliant solution to a common problem, enabling you to use whatever clamps you have on hand to function as corner clamps. I liked them so much, I bought two more sets of six.

Nice little gig for small projects. The only reason I gave it a four star was because they can flex and not be true.

Slight imperfections, but good enough. Great bang for the buck. They smell of Chinesium, but not too strong. These should be sold in 8 packs. Works great with F clamps. I haven't tried them with C clamps. These squares may be used in projects other than as clamping squares. Non-yielding, non-conductive, drillable/cuttable support brackets: equals many future projects.

These are fine for squaring up light material but I noticed if I clamped them to my workpiece the plastic was prone to bending out of 90deg which defeats the purpose. They are fine, I use them often but with the knowledge that they can easily be pushed or pulled in a way that makes them less accurate.

These are a good example of "you get what you pay for." They're not terrible, but they aren't made of very strong and stiff material. If you really need to clamp wood into a true 90-degree angle, you're better off going with metal angles, as these will flex slightly from the strain.

These things are great. Perfect for checking and clamping things square - and a big bonus with 6 and not just 4.I also use them as risers when cutting with the track saw or painting/finishing.

I checked all my pieces carefully with a try square and they seem right on. They appear to be rigid and not flex which of course is the idea. I am sure they will work fine for the intended purpose.

Reasonable accuracy and a good price. Thick enough to clamp easily. Graduated measurement markings on the squares are helpful as well.

solide et bien a 90