$29.99 Each
In stock
Firmly holds panels at a precise right angle, freeing up your hands so you can drive fasteners.
  • Buy 4 for $26.99 each and save 10%

Rockler Clamp-It® Corner Clamping Jig

Item #
58918
Rating:
90% of 100
Rockler Clamp-It® Corner Clamping Jig Rockler Clamp-It® Corner Clamping Jig Rockler Clamp-It® Corner Clamping Jig Rockler Clamp-It® Corner Clamping Jig Rockler Clamp-It® Corner Clamping Jig Rockler Clamp-It® Corner Clamping Jig Rockler Clamp-It® Corner Clamping Jig Rockler Clamp-It Corner Clamping Jig Build a Small Cabinet with Rockler’s Clamp-It Corner Clamping Jig DIY Cabinet for a CNC Shop Stand DIY Entryway Table
Rockler Clamp-It® Corner Clamping Jig

Struggling to hold cabinet parts in alignment while driving fasteners can be an exercise in frustration, and if you're using a nail gun, downright dangerous. The Rockler Clamp-It® Corner Clamping Jig eliminates that frustration by providing another set of ''hands'' to hold your parts together. It's used with the enormously popular Clamp-It® (#29190, sold separately) to hold panels at a precise right angle for fastening. Used in sets of four, the jigs are supportive enough to hold an entire case assembly as it is being assembled. The clamps have soft pads to prevent workpiece marring. Mounting holes in the jig allow for attachment to your work surface.


Features:
  • Extra-wide base, high walls and strong Acme threaded clamp screw hold panels securely
  • Thick cushioned pads to prevent marring
  • Durable glass-filled polycarbonate construction
  • Mounting holes allow for attachment to work surface for creating assembly jigs
  • Jig holds panels exactly 3/4'' off the work surface so you can use scrap boards to support other corners if using only one jig at a time
  • Drilling of 3/8" holes may be required in older Clamp-Its for use with this product.
(1) Rockler Clamp-It® Corner Clamping Jig
(2) 1'' Screws for Attaching Clamp-It (#29190 not included)
More Information
Brand Rockler
Weight 1.5000
Tech Spec
  • Material: Glass-filled polycarbonate
  • Max Panel Thickness: 1''
Technical Documents Adapting the Rockler Clamp-It® Corner Clamping Jig Guide
Prop 65 WarningWARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov

4.5 / 5.0
219 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
154
41
10
8
6
Good product.
They should be a great addition to my shop. I have not used them yet but tried them with 2 scrap pieces of wood and they worked well.
March 18, 2019
Purchased
3 weeks ago
Great Corner Clamp
I used this clamp in conjunction with the right angle to make sure my table frames were square. They worked great!
March 15, 2019
Purchased
3 weeks ago
Woodworking Experience:
Intermediate
Great Help
Helped keep my corner straight while screwing pieces together. I would recommend!
March 13, 2019
Purchased
3 weeks ago
Woodworking Experience:
Beginner
Best Corner Clamp I've Used
This is by far the most accurate and convenient to use corner clamp in my shop. I typically will use them in pairs to create a single corner for boxes or drawers. Alignment is easy as is adding mechanical fasteners.
March 10, 2019
Purchased
1 month ago
Woodworking Experience:
Intermediate
Great for shelves
This worked great for assembling cabinets. I ordered 4 to allow me to assemble the entire piece before adding any of the fasteners. They are a bit pricey but the construction is solid and I did not see anything comparable on the market.
March 7, 2019
Woodworking Experience:
Beginner
Rockler Clamp-It® Corner Clamping Jig
Works very nicely as advertised
March 4, 2019
Purchased
1 month ago
Woodworking Experience:
Advanced
Amazingly handy
Amazingly handy tool, along with the insert, for assembling cabinets.
March 2, 2019
Purchased
over 2 years ago
Woodworking Experience:
Intermediate
Handy
Useful addition to the shop.
February 28, 2019
Purchased
1 month ago
Works well!
Makes drawers and boxes easy!
February 27, 2019
Purchased
1 month ago
CLAMP ITS
Brilliant.
I have used them with ease and great success
February 26, 2019
Purchased
1 month ago
Woodworking Experience:
Advanced
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 18 questions Browse 18 questions and 88 answers
Why did you choose this?
Rockler Store
I need the ability to assemble corners efficiently.
William S on Mar 13, 2019
Convenience and avoid using difficult C clamps.
J. Paul B on Mar 6, 2019
I need the ability to assemble corners efficiently.
William S on Mar 13, 2019
One customer brought up that they were a little pricey, and I agree, so I only bought two to try out. Using these with the assembly squares really works out well when assembling 1/2" or 3/4" boxes and cabinets by yourself. I also bought four of the assembly clips. Very happy with the jigs and clips!
Steven M on Mar 11, 2019
Convenience and avoid using difficult C clamps.
J. Paul B on Mar 6, 2019
I need an extra pair of hands for assembling cabinets.
Brent H on Mar 2, 2019
Works great with large projects.
Adrian E on Feb 28, 2019
Will be building cabinets
Keith P on Feb 28, 2019
To assist in making cabinets for my workshop.
William Q on Feb 27, 2019
On sale. Great product.
Eric P on Feb 27, 2019
To help in making drawers and boxes.
Hans H on Feb 27, 2019
For building laundry room cabinets.
Ryan F on Feb 27, 2019
It will complete my ability to merge a strait or rather to compile a set of holes in-line with the a solid direction for gluing.
Wayne Y on Feb 26, 2019
It may make projects easier
Wallace V on Feb 24, 2019
works great with assembly square. a must have tool
LEE E on Feb 24, 2019
it's the third hand all wood worker could use for joining corners
Kenneth A on Feb 23, 2019
I’ve used assembly squares and this looks like a great companion tool.
Ken M on Feb 21, 2019
I saw a video where they used these clamps.
James V on Feb 21, 2019
To help me hold the plywood at 90 degrees so screws can be installed .
victor. e. a on Feb 20, 2019
recommended by saw girl
Laura V on Feb 19, 2019
Any sort of box construction.
Mike F on Feb 19, 2019
recommended by House of Plywood & paneling, SBN
Chris C on Feb 18, 2019
Building kitchen cabinets.
Gregory A on Feb 18, 2019
Assembly
MICHAEL C on Feb 18, 2019
I choose these cornering clamps to ensure I have perfect corners when building bookshelves. The cornering camps will hold the material steady, which will allow me to move around the workbench to fasten the shelves hassle free.
Edward M on Feb 18, 2019
Saw this on Four Eyes Furniture youtube channel - building workbench / outfeed table
Andria W on Feb 17, 2019
Have two already and found them very useful. Two more will make assembly of boxes and drawers easier. I've even used the to assemble face frames.
Gregory S on Feb 17, 2019
Will be building drawers.
Michael S on Feb 17, 2019
Using for building boxes
Robert V on Feb 17, 2019
To make boxes
John O on Feb 16, 2019
Because I'm having hard time making drawers
Armando M on Feb 15, 2019
To build drawers for our shop and kitchen
Kathryn H on Feb 15, 2019
I'm going to make some tables with skirts on them. These items will help me keep the pieces in alignment.
Gary R on Feb 14, 2019
Doesn’t require extra set of hands
Paul H on Feb 14, 2019
To make it easier to get the project done.
Clarence M on Feb 12, 2019
Assembly of bee boxes
Tim R on Feb 11, 2019
Hands free assembly
Donna W on Feb 11, 2019
I currently have 2, and like how they work. I do have to modify my clamp-it squares for them due to the older design.
Dan R on Feb 11, 2019
Trying to insure my suspicion and fear of impending frustration would not become my reality.
IVAN S on Feb 10, 2019
To clamp and hold corners of cases being built
John W on Feb 9, 2019
Looks like it would be a great product and helpful constructing many things.
Tom S on Feb 8, 2019
This is an excellent product. I have bought the 1/2 and 3/4 Clips that go with these and I believe that they will be used very much in my shop !!
Dennis B on Feb 8, 2019
I thought I ordered 4 but only ordered 3, I need 4.
Paul B on Feb 8, 2019
I make lots of cabinets and drawers. Will assist making the sides at right angle.
Bruce M on Feb 8, 2019
great tool for someone that needs 8 arms to handle a project,
sturdy clamp for keeping ply inline for nailing.
just remember to add the assembly square
( for some reason it's extra, and not included, but needed to use the jig)
Bob B on Feb 7, 2019
Need them
Lloyd B on Feb 7, 2019
I need it
Clifford C on Feb 6, 2019
birthday gift for husband
Elizabeth L on Feb 5, 2019
Great system to get repeatable results every time!

Make sure to get the other required piece: Rockler Clamp-It® Assembly Square
Michael W on Feb 5, 2019
email ad
Darrell J on Feb 5, 2019
This will make it much easier to hold my projects together while I assemble. Like having another set of hands.
Lorraine on Feb 4, 2019
Looks like easy way to glue or nail corners. Will try one first to see how it works.
CARL J on Feb 4, 2019
One customer brought up that they were a little pricey, and I agree, so I only bought two to try out. Using these with the assembly squares really works out well when assembling 1/2" or 3/4" boxes and cabinets by yourself. I also bought four of the assembly clips. Very happy with the jigs and clips!
Steven M on Mar 11, 2019
I need an extra pair of hands for assembling cabinets.
Brent H on Mar 2, 2019
Would it be ideal to have 4 of these while building cabinets or only having two will do just fine?
Trevor O on Sep 15, 2015
BEST ANSWER: If you are building larger cabinets, four might come in very handy
Can item 69954 be used with this item? I ordered 2 of these plus item 69954. Kinda ridiculous this item doesn't include the black plastic squares are ready
Trevor O on Sep 15, 2015
BEST ANSWER: Yes 69954 can be used with this product
What size Replacement Knob to I need for this item?
Bill R on Mar 7, 2016
Can the Rockler Adjustable Clamp-It Assembly Square (Item #33586) be used with this? Or just the fixed 90º Assembly Square?
Lane B on May 7, 2016
BEST ANSWER: This was designed for the fixed Clamp-it
Will the 58918 hold 3/4 inch plywood plus the 29190?
Thomas C on Sep 3, 2015
BEST ANSWER: Yes, it will hold up to 1" plywood plus the Rockler Clamp-It® Assembly Square (Item #: 29190)
Are there any similar products that would work for assembling carcasses built from 2x4's?
mcilroy50 on Jan 22, 2016
BEST ANSWER: You can build your own narrower versions of the 29190 square add-on to clamp thicker materials if you need a higher lip on the backside. Otherwise you can go up to just shy of 3 inches without the 29190 square inserts. With the 29190's in place the maximum width is just shy of 1 inch. Not sure why Lyman L said small wood. So the answer is maybe, it you are talking about the 1.5" dimensional side of the 2x4, but not the 3.5" dimensional side.
What would be the smallest box you could make before the clamps would bump into each other? I'm thinking it would be around 18"?
groundhog on Feb 18, 2016
BEST ANSWER: Looks like about 8" X10.25" insde clearence. These clamps are excellent for aligning larger pieces that are to assembled with screws but are not good for asembling mitered boxes which require pressure from both directions. With that said very helpful in assebling cabinets etc.
Would I be able to use these with Woodpecker brand clamping squares? It would make setup time much faster than using separate clamps.
Ted K on Oct 17, 2016
BEST ANSWER: I bought two of these clamps and they have been a great help in many different projects. They certainly made the job much easier. They are easy to use.
I often build large wooden boxes with box joints. Will these work well to glue them square? Thanks!
carl c on Oct 5, 2015
BEST ANSWER: Hi Carl. These clamp-it jigs are very heavy duty and work great. You must also purchase the clamp-it square (below) to go with each jig. You need at least 2 of each to be effective. I purchased 4 of each to give more versitality. They are very pricey and I regretted purchasing them at first because of that, but they have proven to be very helpful when aligning large projects. I also purchased 2 sets of the mini clamp-it assembly sets.
Rockler Clamp-It® Assembly Square
Rockler Clamp-It® Assembly Square
Would these work with Kreg pocket hole assembly?
Ted K on Oct 28, 2015
BEST ANSWER: They work really great. It is like having an extra set of hands. Highly recommended for any shop!
What is the maximum thickness of wood it works with?
Joseph D on Oct 28, 2018
BEST ANSWER: Up to an inch. Works really great on 3/4 inch just like they say. A second pair of hands. I have 4 units. Great tool.
¿Can this hold thick panels accurately without use the 29190 item?
Carlos Otto C on Feb 14, 2019
BEST ANSWER: I suggest using the #29190 or the new 1/2'' Rockler Clamp-It Clips, 4-Pack #58225 or 3/4” #58849. They will make your life a lot easier when building cabinets.
Under the heading of "what's included", it states 1inch screws to attach Clamp-it (28120 screws not included). Are they included or not included?
George E on Jan 19, 2016
BEST ANSWER: The screws are included.
Part number 28120 does not appear to exist.
Part number 29190 in the current listing, which it says is is not included, is the black right-angle assembly square you see in the picture used with the corner clamping jig in question.
Can I make accurately T-joints of different and equal thickness with this item?
Carlos Otto C on Feb 14, 2019
BEST ANSWER: I just use it with clamp it because I just make boxes for cabnets
I bought two of these corner jig clamps and they arrived with out the black angle pieces shown in the photos. Are they not included? The clamps appear to be useless without them.
Larry Q on Feb 3, 2018
BEST ANSWER: It's used with the Clamp-It® #29190, sold separately.
¿Can this work with the Mini Clamp-it item (27767)?
Carlos Otto C on Feb 14, 2019
Rockler Clamp-It® Corner Clamping Jig
Rockler Clamp-It® Corner Clamping Jig
Rockler Mini Clamp-It® Assembly Square
Rockler Mini Clamp-It® Assembly Square
Will this work with your mini squares?
Dapper Dan on Nov 28, 2018