Rockler 29190 Clamp-It Assembly Square Tool

by Rockler

Product Description

Rockler's Adjustable Clamp-It Assembly Square Tool aligns, clamps and fastens to give a perfect 90° angle every time! A solution that's so simple, you'll wonder why it took so long to develop! The exclusive Clamp-It square guarantees a 90° joint every time, replaces custom clamping jigs, acts as a third hand, and eliminates the need for long clamps! Simply put, the Clamp-It is a square you can clamp. It allows you to assemble any two pieces at 90°, and even lets you assemble a cabinet one corner at a time. It works with any joinery technique, from nails to hand cut dovetails. It is ideal for every stage of construction, from assembling plywood cabinets to face frames and drawers. Clamp-It is also perfect for framing decks and installing rails and balusters. Attach it to a work surface, and it becomes a right angle fixture for bench assembly. Clamp-It has been computer designed and manufactured from high impact, rigid polycarbonate to ensure strength and accuracy. It measures 8" x 8" x 1-1/2".

Product Details

• Shipping Weight: 1.9 pounds
• ASIN: B001DSZ7L0
• Item model number: 29190
• Average Customer Review: 3.6 out of 5 stars  See all reviews (10 customer reviews)
• Amazon Best Sellers Rank: #39,735 in Home Improvement (See Top 100 in Home Improvement)
  • #20 in Home Improvement > Power & Hand Tools > Hand Tools > Clamps > Angle Clamps

Customer Reviews

Most Helpful Customer Reviews

15 of 16 people found the following review helpful:

4.0 out of 5 stars Fairly square for rough work, April 30, 2009

By 

G. Conner "OldSchoolSkill" (USA) - See all my reviews
(TOP 1000 REVIEWER)    (REAL NAME)   

This review is from: Rockler 29190 Clamp-It Assembly Square Tool (Misc.)

These are made from rigid ( phenolic ) plastic so they provide support for clamping well. They are close to square (not perfectly square) and the surfaces are not very flat. For rough casework, that is not a problem. They help with clamping carcasses, despite their imperfections. It would be tough to make better clamping squares for less money, especially if you consider your time for labor.

If you need these to be perfectly square and flat, you can adjust them with two plywood faces (cut to size) and a little tape. One of mine was so close to perfect that I couldn't improve it much. The other three were out of square by over .005". The plywood faces and tape brought them into line in. The phenolic blocks provide strength while the plywood faces register square to the work. A dot of CA glue on each end holds the faces in place.

By the way, I did not buy these but received them as a gift. You can make perfectly useable and perfectly square clamping cauls from stock corner-braces, like those you see in home-centers for shelving. The heavy duty metal ones cost five bucks. They are every bit as square ( or un-square) as these these things and are just as easy to fix. Seeing as how you would have to square these up anyway, you can save some dough by making your own or modifying the less-expensive metal corner-braces. Depending on your budget, needs and disposition, that is another option. But these are not terrible for the dough.

3 of 3 people found the following review helpful:

1.0 out of 5 stars Disappointing...., November 29, 2010

By 

Amazon fan "George" (Staunton,VA) - See all my reviews

This review is from: Rockler 29190 Clamp-It Assembly Square Tool (Misc.)

The ones I bought directly from Rockler were not square! Why bother modifying them if you can make more accurate ones yourself for less? I suggest either using Swanson speed squares (metal) or buying metal assembly squares from Woodpeckers.

1 of 1 people found the following review helpful:

4.0 out of 5 stars darned good but not perfect, April 23, 2010

By 

G. Robinson "Extensive reader" (CO) - See all my reviews
(VINE VOICE)    (REAL NAME)   

Amazon Verified Purchase

This review is from: Rockler 29190 Clamp-It Assembly Square Tool (Misc.)

These are well made from rigid injection molded plastic. According to my Starrett Square the insides are dead on; but the outsides are between 1mm to 2mm out over 200mm. A .5% to 1% error isn't that big a deal but is inexcusable with injection molded plastic. Should be easy to fix with some judicious sanding. Both sides of the squares are flat across the narrow part.

BTW Rockler has these on sale for $5.99. 5/11/'10.