Rockler Woodworking and Hardware recently came out with an upgraded F-Style woodworking clamp. It’s called the ROCKLER Sure-Foot F-Style Clamp, this new clamp is impressive!
First Impression:
One thing that is immediately noticeable it the beefy construction of this clamp. there is nothing flimsy about the shaft or the clamping frames.
I clamped the Sure-Foot™ F-Style Clamp down on some 2×4 stock ad tightened it as hard as I could to see if they would bend 
One thing I noticed in the shop was the threads connecting the adjustment knob. They are rugged, deep and well defined. Many times clamps get glue, paint and other material debris in the threads, making them difficult to turn. These aggressive threads will not be easily clogged with that debris.
I used the clamps to glue up some 1x nosing on some birch plywood shelves in the shop. The clamps feel well made and adjust with precision. I also used them to hold down some angle iron when drilling on my drill press. They have impressive clamping pressure and worked well. One nice feature of the no-tip stability of the Sure-Foot base allowed me to stand these clamps up on the bench, leaving two hands free for easy positioning and clamping.
Overall Impression:
I enjoyed testing the Sure-Foot™ F-Style Clamp. Rockler did their homework and designed a rugged, well made, comfortable and easily adjustable clamp that will no doubt provide dozens of years of service in any shop. When 
How Much And Where to Buy:
The Sure-Foot™ F-Style Clamps have a 2-1/2″ throat depth and come in four lengths:
Sure-Foot™ 6″ clamp: $ 16.99
Sure-Foot™ 12″ clamp: $ 17.99Sure-Foot™ 18″ clamp: $ 18.99
Sure-Foot™ 24″ clamp: $ 19.99
