90° Corner Clamp

Average Review (5):

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The easy way to hold 90° corner joints and “T” joints in boxes, cabinets, and cases

  • Works on 90° corners and “T” joints
  • 1" maximum capacity
  • Cast aluminum “V” and wedge clamp pads
  • Automaxx® auto-adjust technology
  • Easy-to-regulate clamping pressure with thumbwheel
  • Cutout allows driving a pocket-hole screw without removing clamp
  • Padded, ergonomic handles



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The Kreg® 90° Corner Clamp gives you the helping hand you need to hold 90° corners and “T” joints together securely when you’re assembling boxes, drawers, cabinets and cases. Plus, the 90° Corner Clamp leaves both of your hands free to add your fasteners. The 90° Corner Clamp is the fastest, easiest-to-use corner clamp you can buy thanks to Kreg Automaxx® auto-adjusting technology.

The 90° Corner Clamp helps hold assemblies like boxes, cabinets, drawers and cases together to ensure that you get strong, tight-fitting assemblies—whether you’re using Kreg pocket-hole joinery, or another method. The clamp’s V-wedge jaws grip the mating pieces securely, ensuring that the pieces sit at precise 90° angles while you drive in Kreg Screws, or even another type of fastener, such as a nail or wood screw.

The 90° Corner Clamp features all-metal construction, including cast-aluminum pads—an outer "V" and inner wedge—that press against the inside and outside faces of the two pieces being joined in order to hold those pieces at a 90° angle to one another. Edge stops also help align the edges of the pieces to ensure accurate assembly of structures like boxes, cabinets, drawers, and cases.

Thanks to Automaxx® auto-adjust technology, all you have to do is squeeze the clamp handles. The clamp will automatically close with the amount of pressure you have set, regardless of the material, whether you’re using thin plywood for drawers, or materials up to 1" thick.


Clamping Capacity

90° corner and “T” joints in materials up to 1" thick


Forged, heat-treated steel, cast aluminum, "V" and Wedge, padded grips


Self-squaring; automatically aligns joints to 90° angle; Automaxx™ auto-adjust technology

Adjustment Knob

Provides easy-to-regulate clamping pressure


(1) 90° Corner Clamp

Reviews for "90° Corner Clamp"

Average Review:

Adjustment Screw

Looked like a great tool, unfortunately could not get the adjustment screw to work and lost time on a project because I had to take it back to store to get my money back. Fix the adjustment screw and this will be a really great tool.


By James O'Sullivan

October 25, 2018


Wow,Wow, Wow.. I could NEVER get square butt joints... Now - so simple. Gary , If I may , a " little " drop of oil on the adjusting knob , and wha-la ... You do not have to adjust the pressure often at ALL.. thank you Kreg . Another GREAT JIG..


By Michael Kesler

June 17, 2018

Great Product

I also found the adjustment knob a little hard to use, could be a little bigger, but overall everything else about this clamp makes that almost a non issue. I've used this clamp on two projects already and in both instances it worked great and setup time was considerably faster than other methods I've used in the past. IMO, Kreg has a real winner in this clamp.


By Dave Sweeney

June 11, 2018

Very useful tool!

I really appreciate those notches cut into the clamp so I have access to screws without removing the clamp. Also excellent quality product, Kreg you did it again!


By Andrea Arzensek

May 23, 2018

Adjustment knob

Haven't used yet but while checking out the tool I found it very difficult to turn the adjustment knob.


By Larry Gregan

May 13, 2018

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