In stock
Ingenious double-threaded piston system produces faster clamping speed and greater clamping power with the same degree of rotation.
Grouped product items
Product Name Price Qty
24'' Rockler F-Style Piston Clamp by Piher
24'' Rockler F-Style Piston Clamp by Piher Item #: 57297
In stock
Special Price $26.99 Regular Price $44.99
Each
32'' Rockler F-Style Piston Clamp by Piher
32'' Rockler F-Style Piston Clamp by Piher Item #: 58076
In stock
Special Price $32.99 Regular Price $54.99
Each

Rockler F-Style Piston Clamps by Piher

Item #
GRP40287
Rating:
84% of 100

Thanks to their double-threaded screws, these piston clamps can generate more force, and can be closed more quickly than ordinary F-clamps. Take a close look at the clamping foot and you'll notice that the upper threads are encased in a metal cylinder: the ''piston.'' These internal threads work in tandem with the primary external threads to close the clamp. The result is that one revolution of the handle equals more lateral travel and more potential force than it would on an ordinary F-clamp. In addition, since the piston does not spin as it advances, any twisting forces that could cause misalignment are eliminated.


Features:

  • Piston foot advances without spinning, reducing any twisting torque that might otherwise cause misalignment or marring
  • Business end of screw is shielded from glue and dust
  • Rugged build with cold rolled steel bar for amazing strength and durability
  • Generates over 2,000 pounds of force
  • Swivelling handle for generating more leverage
  • Due to the robust thickness of the bar on these clamps, they will not fit into our F-Style Clamp Rack. For convenient storage, use our Parallel Clamp Rack (#38498, sold separately) instead.
(1) Rockler F-Style Piston Clamp by Piher
More Information
Brand Rockler
Manufacturer Part Number N/A
Weight 1.0000
Tech Spec
  • Clamping Force: 2,000 lbs.
  • Throat Depth: 4-3/4''
  • Bar Material: Cold Rolled Steel
  • Made in Spain
  • Lifetime guarantee
Tech Docs N/A
Prop 65 WarningWARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov

4.2 / 5.0
25 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
14
7
1
1
2
Highly recommended
Superior clamping pressure with minimal tightening.
June 5, 2018
Purchased
1 year ago
Woodworking Experience:
Intermediate
Awesome clamps
Easily adjustable. Tremendous clamping power.
May 9, 2018
Purchased
1 year ago
Woodworking Experience:
Intermediate
This clamp met my expectations for a heavy duty clamp. Bought them on sale
March 12, 2018
Purchased
6 months ago
Woodworking Experience:
Beginner
Nice heavy duty clamps
These remind me of heavy duty clamps of old. They are perfect for bigger jobs needing extra clamping poundage. Really happy with them.
November 2, 2017
Purchased
1 year ago
Woodworking Experience:
Intermediate
substantial power
This is a heavy clamp, in power and weight. The Piher clamp will subdue just about anything you throw at it. The "L" handle screws up double fast which is handy when your hands are full and a quick holding grab is needed.
August 10, 2017
Purchased
1 year ago
Woodworking Experience:
Intermediate
Love this clamp. Applies a lot of pressure with a few twists of the handle. Able to fine tune clamp pressure with small twists of handle.
August 8, 2017
Purchased
1 year ago
Woodworking Experience:
Intermediate
Mac Daddy!
If tremendous force is needed—then this is the clamp to use.
July 30, 2017
Purchased
1 year ago
Woodworking Experience:
Intermediate
Sharing answers and technical issues
We add this review in order to answer some technical questions in others reviews:

1. PARALLEL JAWS?
The jaws are NOT parallel because they are always adjusted during the manufacturing process with an approximate angle of 89º, this angle is called Angle of Compensation
(this theory is also applied to all bench vices). During the first times the tool is used, the jaws will adjust themselves until they reach a right angle. The jaws becoming more and more parallel is because of the pieces of which the tool is made, after their assembly in the factory, as they gradually settle down . If there is no Angle of Compensation, during the first uses, the tool would lose its right angle (greater than 90º) and then, the problem would have no solution

2. NO TWISTING?
The statement "since the piston does not spin as it advances, any twisting forces that could cause misalignment are eliminated." means that the advance of the piston is perpendicular, without twists because the piston does not rotate and therefore these errors of misalignment in the pieces to be clamped are avoided

3. TOO MUCH FORCE?
The strength that can be made with our tools is much higher than the other brands. Our clamps with little effort a lot of pressure is reached. This does not mean that the maximum pressure must be exerted during the work. On the other hand, for the use of these tools with easily damaged materials it is advisable to use our professional plastic protectors that are designed to avoid leaving any marks.

Finally, regarding your assertion that these tools are more for metal works than for wood, from PIHER with more than 60 years of history, we assure you that our clamps are valid for both metal and wood, as attested by European carpentries which have been using our tools for decades.

We will be pleased of attending and solving any doubts or question about the fabrication and use of our clamps.
March 23, 2017
Woodworking Experience:
Advanced
Wow!!!
I have some Jet parallel clamps, Bessey and Jorgensen bar clamps that are great, but if you need a crazy amount of clamping power, these are outstanding. I wasn't sure about the handle being able to turn and increase the clamping pressure, but this is no gimmick. These are high quality, heavy duty clamps.
March 21, 2017
Purchased
1 year ago
Woodworking Experience:
Intermediate
Purchased based on price point
These perform on par with any other clamp out there, and at US $19.99/clamp it was a steal
January 24, 2017
Purchased
1 year ago
Woodworking Experience:
Intermediate
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 3 questions Browse 3 questions and 5 answers
Why did you choose this?
Rockler Store
Needed better Clamping pressure & the price was right
Robert W on Mar 1, 2018
thick staff
Rick F on Mar 1, 2018
Needed better Clamping pressure & the price was right
Robert W on Mar 1, 2018
I have 4 of the 24" Rockler F-Style clamps and they're the best so I'm retiring 4 32" generic quick-grip style and replacing them with these. Heavy duty and worth the investment!
Steve C on Mar 1, 2018
thick staff
Rick F on Mar 1, 2018
wanted to try this type of clamp. I normally use Besseyb k body.
D S on Mar 1, 2018
Would like to try them out
Clyde R on Feb 19, 2018
Need some clamps and these looked good and were on sale.
William J on Feb 19, 2018
Price and would like to try this type of clamp.
Royce C on Feb 18, 2018
depth and clamping strength. Price is high, so I ordered about half of what I really wanted. I'll get the remaining clamps I need from Harbor Freight
Joel D on Dec 16, 2017
Husband asked for it for Christmas
Loni L on Nov 24, 2017
Strongest, most durable clamps I have ever used.
Bradford A on Sep 3, 2017
Reviews
Ted Z on Sep 2, 2017
I chose these clamps to use mostly with my cauls.
Jeff H on Aug 1, 2017
Strength and durability and sale price
David G on Jul 27, 2017
New style clamp for me and it was on sale
Peter M on Jul 24, 2017
currently on sale, great value - awesome clamps. Purchased 2 previously directly from store in Salem, NH.
Bob R on Jul 22, 2017
strong
Karen S on Jul 19, 2017
Well made, strong, heavy duty clamp.
Keith M on Jul 19, 2017
I was looking for some heavy duty f-style clamps and I think these will serve my purpose
Ray L on Jul 16, 2017
I am tired of other types falling apart or breaking.
Linda L on Jul 13, 2017
To try this style and because they were on sale.
Dan S on Jul 10, 2017
Can always use more clamps! Have several smaller clamps of this type.
Chuck B on Jan 2, 2017
very good price for a very good clamp
William E on Jan 1, 2017
did not have this type clamp
Paul Z on Jan 1, 2017
I needed the extended reach
John B on Jan 1, 2017
For use in gluing for larger boxes.
Larry B on Dec 29, 2016
need deep clamps and good price
Dan B on Nov 28, 2016
I have a few parts I need to steam bend and these hopefully will give me the added clamping pressure needed.
Matthew R on Nov 28, 2016
Sale price and I needed some clamps with additional clamping force for use in gluing up laminated curved pieces
Scott V on Nov 28, 2016
Can never have enough clamps.
Kimberly W on Nov 27, 2016
Great sale price.
Austin K on Nov 25, 2016
I have 4 of the 24" Rockler F-Style clamps and they're the best so I'm retiring 4 32" generic quick-grip style and replacing them with these. Heavy duty and worth the investment!
Steve C on Mar 1, 2018
wanted to try this type of clamp. I normally use Besseyb k body.
D S on Mar 1, 2018
Why are the jaws not parallel?
John D on Dec 3, 2016
BEST ANSWER: The jaws are not parallel because they are always adjusted during the manufacturing process with an approximate angle of 89º, this angle is called Angle of Compensation
(this theory is also applied to all bench vices). During the first times the tool is used, the jaws will adjust themselves until they reach a right angle. The jaws becoming more and more parallel is because of the pieces of which the tool is made, after their assembly in the factory, as they gradually settle down . If there is no Angle of Compensation, during the first uses, the tool would lose its right angle (greater than 90º) and then, the problem would have no solution. For the use of these tools with easily damaged materials it is advisable to use our professional plastic protectors that are designed to avoid leaving any marks.
.


Why were the back of the Head and Adjusting clamps not made flat?
Ronnie H on Nov 1, 2016
BEST ANSWER: Regarding this question, there is no real technical reason, it is more to differentiate the blue line from that of the Maxipiher which does have flat back parts.
Can I know please what is the material of those clams jaw? Thanks
Claudio P on Dec 3, 2016
BEST ANSWER: The material that we use for the jaws is nodular cast iron, all the pieces are marked with the date of manufacture and position in the mold, thanks to this traceability control, we can guarantee for life its use. During the design of the jaws, a resistance factor was applied, 100% greater than they have to endure during their lifetime use to avoid problems of bending or breaking.