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IRWIN Tools QUICK-GRIP SL300 Series Bar Clamp / Spreader, 18-Inch (518QCN)

4.7 out of 5 stars 263 customer reviews
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Price: $19.00 & FREE Shipping on orders over $49. Details
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18-Inch
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  • Provides up to 300 pounds of sustained clamping force. Tested to complete 5, 000 cycles without failure, more than other brands.
  • I-beam bar reduces flexing and bowing. Heat-treated, black oxide carbon steel provides maximum durability.
  • Clutch lock mechanism with quick-release trigger lets you quickly and easily adjust jaw with the touch of a button.
  • Locking swivel jaws with removable full-face pads distribute clamping force easily, while protecting the work surface.
  • The Quick-Change screw easily converts the clamp to a spreader and eliminates end-jaw rattles. Affixed spring-loaded screw won't get lost.
58 new from $19.00 1 used from $16.15
$19.00 & FREE Shipping on orders over $49. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • IRWIN Tools QUICK-GRIP SL300 Series Bar Clamp / Spreader, 18-Inch (518QCN)
  • +
  • Irwin Tools 5464 Quick Grip One-Handed Mini Bar Clamp, 6-Inch, 4-Pack
Total price: $46.78
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Size: 18-Inch

Product Description

Size: 18-Inch

Product Description

Provides up to 300 pounds of sustained clamping force. Tested to complete 5, 000 cycles without failure, more than other brands. I-beam bar reduces flexing and bowing. Heat-treated, black oxide carbon steel provides maximum durability. Clutch lock mechanism with quick-release trigger lets you quickly and easily adjust jaw with the touch of a button. Locking swivel jaws with removable full-face pads distribute clamping force easily, while protecting the work surface. The Quick-Change screw easily converts the clamp to a spreader and eliminates end-jaw rattles. Affixed spring-loaded screw won't get lost. IRWIN Tools QUICK-GRIP SL300 Series Bar Clamp / Spreader, 18-Inch (518QCN)

From the Manufacturer

The invention of Quick-Grip bar clamps revolutionized clamping with the introduction of the first one-handed bar clamp. Now comes an even more versatile addition to the line of Quick-Grip bar clamps: the Quick Change bar clamp/spreader. It is quicker to use and more versatile. This 18-inch bar clamp changes into a spreader as quick and easy as 1,2,3. No tools required. The Quick Change multi-position jaw can be positioned anywhere on the bar making even the most challenging clamping or spreading task a snap. This Quick Change Quick-Grip Bar Clamp/Spreader has a clamping capacity of 18-inches, and a spreading capacity of 7-1/2-inches to 26-5/8-inches. The quick one-handed operation means less hand fatigue, and combined with the ability to easily slide the handle into position by engaging the metal Quick Release Trigger, clamping has never been so quick. The Ergonomic Pistol Grip provides a comfortable grip and concentrated clamping pressure. This 18-inch bar clamp/spreader comes with non-marring, stay-on pads. These pads are designed to firmly stay in place while clamping, yet they are easy to remove or change, if desired. The Quick Change bar clamp/spreader is manufactured with quality and pride in the USA. Full lifetime warranty. Each Quick-Grip clamp is warranted to be free from defects in material and workmanship for the life of the tool, except for damage caused by abuse, misuse or alteration.

Product Information

Size:18-Inch

Technical Details

Part Number GID-286155
Item Weight 3.2 ounces
Product Dimensions 27 x 9 x 2 inches
California residents Click here for Proposition 65 warning
Item model number 518QCN
Size 18-Inch
Item Package Quantity 1
National Stock Number 6250-01-406-2956

Additional Information

ASIN B001I6BUK4
Customer Reviews
4.7 out of 5 stars 263 customer reviews

4.7 out of 5 stars
Best Sellers Rank #21,469 in Home Improvements (See top 100)
#18 in Home Improvement > Power & Hand Tools > Hand Tools > Clamps > Bar & Pipe Clamps > Bar Clamps
Shipping Weight 1.7 pounds (View shipping rates and policies)
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First Available March 28, 2000

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Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Customer Reviews

Top Customer Reviews

Size: 36 Inch
These are your typical hand-ratchet clamps with an added feature -- the ends are reversible so it can work as a spreader if needed. They are solidly constructed, do not mark wood surfaces, and a great addition to my shop. I sometimes can't get the same force I would normally get out of a screw clamp, but for most jobs this is a great clamp.
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Size: 36 Inch
This clamp uses the ingenius trigger grip design for unbelievable ease of use. This makes the clamp unbelievably easy to tighten using one hand. A few warnings about this particular product, however:
(1) Be sure the size is correct. I think the 36" size is too big for all but the biggest projects. I think the 18" size is the best all-around size.
(2) The plastic construction makes the clamps best for holding items "approximately" in place. If you need total clamping for cutting precision, look elsewhere.
All in all, a good product if it is the right size, and used for the right purpose.
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Size: 36 Inch
The big benefit to these is that you get true mobility out of them. While holding a piece of work, lined up, in one hand, you use these quick grips in the other hand to secure the work. If it slips while clamping, it is still a one handed tool to release it, and reclamp it again. Enables you to maintain a professional flow to your work. I feel awkward when using regular clamps in comparison. They require two hands. You could use a spring clamp to hold it together, then get another clamp to give it a final hold, but the quick grip saves you from having to do that.
Having these clamps in a few different sizes is beneficial as well. Small ones are more frequently used, and don't get in the way. The 33 1/2" is great when you need to hold larger projects together, and you can't effectively use two smaller ones to substitute. Additionally the macro clamps give you deeper jaws for a farther reach, enabling you to use them for securing work, to your radial arm saw table for example. They are fast enough to be used for almost any application. Sometimes I use them to secure work when sanding with a power sander. A couple squeezes and they are on, and one squeeze and they pop off.
After getting the smaller ones, and using them, I immediately order two of the 33 1/2" for larger projects, and for tie downs on equipment, including the drill press, and occasionally the radial arm saw.
Their is a small rubber stopper, which you can readily remove, in order to reverse the end, and make it a spreader as well. Something not needed very often, but difficult to achieve without one of these.
One note is that these have built in rubber pads, that completely cover the metal internal end. That is an advantage when you do not want to mar the wood.
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Size: 12 inch Verified Purchase
These are well-made and very convenient clamps. I have only used them for one project so far (hanging five slab doors), but everything I used these clamps, they did what I wanted, did what I needed, and were never a part of the problem, only a part of the solution.

My only issue is with the release mechanism. I had to struggle a little bit sometimes to get it to pop free. Also, with the release lever depressed, I had some difficulty sliding open the clamps. This is not unexpected or disappointing -- I figure it will take a little practice to get good at releasing and sliding the clamps. The trigger action clamping is so convenient that its well worth learning how to finesse the other parts.

I am glad I got the 12" clamps. When I initially envisioned how I might use these clamps, I thought perhaps the shorter clamps would be all I needed and might be easier to wield. But then I realized I didn't know what I might actually need and I figured it was safer to have too much clamp than too little. Well, I ended up using these to clamp my work piece onto huge posts and to inset legs on a workbench, even the railing on some stairs. Having the extra throw was so helpful -- I was able to use all sorts of imagination for how to hold the work piece with these.

Invaluable when working alone.
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Size: 24 inch Verified Purchase
I am a cabinet maker and have used the 12" version for several years. I find them incredibly handy and I have bunches of them. However, the reason I have bunches of them is that they wear out, loosing the ability to clamp and hold tightly. I had hoped these would be a bit tougher, but I don't think they are. Still they are handy. For anything serious, glue-ups, curves, and the like. I'd use a different clamp. But these are handy for quickly pulling a piece together before applying a more reliable clamp.
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Size: 36 Inch Verified Purchase
I have a bunch of Quick Grips in a variety of sizes, from 12" to 36" and even the 6" Mini Quick Grip but those are somewhat of a novelty for hobby projects, not woodworking. They're generally nice and versatile but have shortcomings:

1) All of the different lengths of this clamp use the same bar but it's not always strong enough for the longer models. That is especially apparent when using the 24" and 36" models as spreaders. When used as a spreader, it's easy for the bar to bow to the side (and even permanently bend like my 36" model did) when applying only a modest, reasonable amount of pressure. Even when used as a clamp, the 24"+ models can cause the bar to bow a little but in the opposite directions - in the direction that the bar should be strongest.

2) When you apply a lot of clamping pressure, the clamp sometimes gets a little bound up and pressing the release lever doesn't actually release it. You have to use both hands to get it off, which takes away from one of these clamps' greatest strengths – one hand operation. I ran into this a few times today while trying to clamp something a little complicated by myself. It was a frustrating experience.
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