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Product Price Qty
6'' Quick-Grip® SL300 Clamp
6'' Quick-Grip® SL300 Clamp Item #27356
In stock
$19.99 Each
12'' Quick-Grip® SL300 Clamp
12'' Quick-Grip® SL300 Clamp Item #27853
In stock
$27.99 Each
18'' Quick-Grip® SL300 Clamp
18'' Quick-Grip® SL300 Clamp Item #20119
In stock
$29.99 Each
24'' Quick-Grip® SL300 Clamp
24'' Quick-Grip® SL300 Clamp Item #27876
In stock
$31.99 Each

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Irwin Quick-Grip® SL300 Clamps

Fast and furious clamping—now featuring a quick-release button to reverse the clamp head for spreading.
Item #
92% of 100

Since not every workpiece has perfectly even edges, the Quick-Grip SL300 adds a swivel jaw that conforms to angled surfaces and combats the inevitable flexing that occurs with resin clamps. It also features a quick-release push button that makes it easy to convert the clamp to a high-performance spreader. A heavy-duty I-Beam Bar allows you to apply up to 300 lbs. of clamping pressure with minimal bending and flexing. All these improvements come without any added weight, so the clamp retains its chief benefit: simple one-handed operation.

  • Quick-Release™ trigger provides fast positioning and maximum hand comfort
  • High-tech resin construction for light weight and durability
  • Heat-treated, black oxide carbon steel I-Beam Bar for extreme rigidity
  • No-mar resin jaw pads are removable
  • Swiveling jaw for angled workpieces
(1) Quick-Grip® SL300 Clamp
More Information
Brand Irwin
Weight 1.9000
Tech Spec
  • Clamp Pressure: 300 lbs
  • Throat Depth: 3-1/4''
  • Grip Style: Pistol, Quick Grip
  • Type: Quick-Release
Grip Style Pistol, Quick Grip
Clamp Pressure 300 lbs
Type Quick Release
Length 6", 12", 18", 24"
4.6 / 5.0
233 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Big but powerful
This 300 series clamps are MUCH larger than the standard Irwin clamps I use but for the occasional times that I need extra clamping oomph in a project, these work quite well.
May 17, 2020
1 year ago
Woodworking Experience:
Great clamps
The light weight and great force of these make them a pleasure to grab when neededl
April 2, 2020
4 months ago
Woodworking Experience:
good handy clamps
These are pretty smooth operating with good holding power.
October 4, 2019
over 2 years ago
Woodworking Experience:
Good fast action clamp
Great where moderate pressure is needed. If you want ultra high clamping force, use a steel clamp.
July 23, 2019
over 3 years ago
Woodworking Experience:
Clamp Down on This!
In my clamp inventory I have some older Irwin clamps that have some woodworking miles on them. So I saw in a recent Rocker flyer I received in the mail offering an Irwin 12" clamp at a generous price reduction. Too good to pass up, so I bought two of them. Then, because of the fact I was so pleased with noticeable improvements and ease of use over my "aging" Irwin clamps, I bought two more! Bam!
July 15, 2019
1 year ago
Woodworking Experience:
Great clamp! Use it all the time.
I find Irwin clamps to be some of the sturdiest and most reliable. I've tried some knock-offs from the Chinese freight store but they don't last as long and you can tell they are much more cheaply made.
March 2, 2019
1 year ago
Woodworking Experience:
Love These Clamps
I have had a pair of these 12" clamps for over 10 years. These are the clamps I always grab even though I have Bessy and several other quality name clamps. these are fast and easy to use. I just wish they were cheaper.... I would buy more.
February 24, 2019
Woodworking Experience:
I love these clamps! I use them a lot and they are very versatile. Really easy to change from clamp to spreader and back.
I highly recommend these clamps for any medium clamping pressure job. The work really well!
February 5, 2019
1 year ago
Woodworking Experience:
Clamping jaws are now too bulky.
The QuickGrip Clamps I used to give a 5 star rating. But, since the clamping heads (jaws) was made to a bulkier size, I'm lucky to rate this clamp even a 4 star rating. The bulkier head on these clamps with the black pads, make these clamps somewhat useless on certain clamping procedures. Now I'm force to use F-clamps with a slimmer clamp head. causing longer glue-up times.
January 23, 2019
Woodworking Experience:
Irwin quick grip clamps are my go-to clamps for dozens of tasks in my shop
November 10, 2018
1 year ago
Woodworking Experience:
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Browse 7 questions Browse 7 questions and 16 answers
Why did you choose this?
Rockler Store
I needed more of these clamps.
Jerry L on Aug 20, 2018
to install patio sling chair fabric
Jerry D on Aug 3, 2018
I needed more of these clamps.
Jerry L on Aug 20, 2018
we use them all the time. Gift
Shannon M on Aug 17, 2018
to install patio sling chair fabric
Jerry D on Aug 3, 2018
planning project
DOUG G on Jul 30, 2018
needed 4 more clamps--never enough clamps
Raymond J on Jul 30, 2018
Just needed more of them. They are indispensable.
MICHAEL K on Jul 28, 2018
roger t on Jul 26, 2018
JAMES D F on Jul 24, 2018
Brand, price. Never have too many clamps!
Philip L on Jul 23, 2018
very good price
Michael G on Jul 23, 2018
Have them! Love them! Great clamps!
Jim K on Jul 21, 2018
Have two pair and like the easy one hand operation.
Boomer on Jul 18, 2018
I have used this clamp before and it works well. Your company has lowered them to a great price during the current sale.
Robert M on Jul 17, 2018
Already have some, like them, these were on sale, and can never have too many clamps!
Rush W on Jul 16, 2018
Good price
Dan L on Jul 16, 2018
Good price and a great clamp.
marshall o on Jul 16, 2018
Because it was the only one on sale at 50% off
William C on Jul 16, 2018
On sale, need clamps
Norm C on Jul 16, 2018
I use Quick Grips all the time in my shop for light duty holds.
Cordell Roy C on Jul 16, 2018
Good Price and a Good clamp
jon b on Jul 13, 2018
Looks solid.
Richard S on Jul 13, 2018
need more clamps...great price
David H on Jul 11, 2018
Great price; great product.
Gary H on Jul 11, 2018
Brand / price
Philip L on Jul 10, 2018
quality & price
dennis r on Jul 10, 2018
great sale price for a good product
Thomas R on Jul 9, 2018
Irwin clamps are made well & work well
Douglas M on Jul 9, 2018
great clamps
Willie on Jul 8, 2018
I lost one and this looks like a good improvement
W E on Jul 8, 2018
always need clamps
kevan d on Jul 8, 2018
John D on Jul 8, 2018
Price. Need more clamps. Must...have...more...clamps.<br />Mmmmm...clamps!
Matthew T on Jul 6, 2018
Consistently good clamps.
Michael A on Jul 6, 2018
Great for installing cabinets.
Wesley H on Jul 6, 2018
Great Price
FRANK H on May 31, 2018
Decent price
Barry M on May 31, 2018
Have some and like them
William D H on May 31, 2018
I have a few of the shorter ones, work great for one-handed clamping.
Jeff C on May 30, 2018
They work well and the sale price
Bryan B on May 28, 2018
Great clamp at a great sale price.
Mark T on May 28, 2018
These are nice clamps and good price
Vickie Z on May 28, 2018
Needed some longer Quick-Grip Clamps for light duty glue-ups.<br />Great price.
Paul E on May 28, 2018
I use another brand of quick grip quite often because they are so versatile and this was a great price to try these.
charles a on May 28, 2018
On sale! They'll clamp a 24" glue-up. They compliment my existing collection.
Matthew T on May 27, 2018
Awesome sale price
Steve H on May 27, 2018
great clamp, great price
Vernne G on May 27, 2018
Price during flash sale
dyiTO on May 26, 2018
more clamps always good ,especially at this price
George T on May 26, 2018
Always need more clamps!
Christopher B on May 26, 2018
on Sale
Roxie B on May 26, 2018
we use them all the time. Gift
Shannon M on Aug 17, 2018
planning project
DOUG G on Jul 30, 2018
Why can't I get the quick release button to release so I can convert the clamp to spreader as advertised. The button says 'push' but the end does not release. Is there a secret?
george b on Feb 8, 2017
BEST ANSWER: On the head, you push the center off the head over to one side and slide off the head and rotate it, slide it back on and push the button back in place. The button on the head is also held together by two torx screws. try unscrewing the torx screws to see if something is obstructing it.
my end piece of the clamp broke do you have replacements?
phil b on Aug 18, 2017
where can I get replacement pads?
Al on Oct 25, 2017
Are these 24” clamps Medium duty or heavy duty?
Mark on Sep 2, 2019
BEST ANSWER: That depends on your definition of medium and heavy duty. I have used them for laminating materials, push holding framing and metal work together to preforming weather tight seals. I am very happy with the ones I own and used. Irwin is the only clamps i own, i have ~ 30 in various sizes. 24” is medium size clamp and I have 6 of them. There are limits to the pressure they apply, but i have not run into these situations.
Can you post the throat depth and clamping width for each clamp? Is the listed length the length of the bar, or the maximum distance between the pads? This should really be provided by Irwin or Rockler rather than a question. This would be key information to know before buying any clamp. Length doesn't really tell you much if you don't specify length of what.
Bill H on Dec 20, 2015
BEST ANSWER: The specified clamp size (e.g. 6", 12", 18", etc.) is the distance between pads at the largest possible opening. The throat depth, from the top of the metal bar to the center-line of the pivot point of the stationary pad, for all three of the mentioned clamp sizes, is approximately 2-1/4"
The advertising says it has a 300 lb capacity as a clamp. Does anyone know what the capacity is as a spreader?
MikeD on Nov 23, 2018
BEST ANSWER: In terms of bracing force, it seems just about the same
What are the dimensions of the shaft?
konner b on Jul 18, 2018
BEST ANSWER: Shaft measures 11/16" x 3/16" x listed length for the heavy duty clamp.