Message to Our Customers


Model # 3712-HD

Internet # 100146660

Store SKU # 547734

12 in. Heavy-Duty Bar Clamp

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$13.97 /  each


Model # 3712-HD

Internet # 100146660

Store SKU # 547734

The ergonomic Jorgensen 12 in. Heavy-Duty Bar Clamp features patented waves that reduce harmful shock to the hand and arm. The clamp has an extra soft ergonomic grip for increased comfort and enhanced shock absorption. The clamp has an alloy steel induction hardened for superior toughness and durability.

  • 3 in. reach
  • Alloy steel induction
  • Extra soft ergonomic grip for increased comfort and enhanced shock absorption
  • Machine-ground anvil
  • Castings that are hardened steel thrust bearings and castings of malleable ductile iron with orange baked enamel finish
  • Sliding heads that have 1/2 in. cold-drawn steel screws with smoothly cut ACME threads
  • 1,000 lb. of clamping strength


Assembled Height (in.) 
5 in 
Jaw Width 
1.25 in 
Throat Depth 
3 in 
Clamp Type 
Clamping strength (lb.) 
Hand Tool Type 
Maximum Opening 
12 in 
Tools Product Type 
Hand Tool 
Warranty / Certifications
Manufacturer Warranty 
1 Year Warranty 


Rated 4.7 out of 5 by 29 reviewers.
Rated 5.0 out of 5.0 by You Can Never Have Too Many "Jorgenson" Clamps The highest quality clamp I have been able to readily find over the past few years. I inherited some very nice clamps from my Grandfather many years ago that might be a bit more rugged, but at a significant liability on weight. It is my understanding that these clamps are made in Chicago which only adds to my affinity for this product. And to conclude I would be remiss if I did not repeat what I have heard Norm Abrams of New Yankee Workshop say many times; "You can never have too many clamps" December 11, 2013
Rated 5.0 out of 5.0 by 12 in. heavy-duty bar clamp THE FIRST TIME I USED MY (4) HEAVY-DUTY BAR CLAMPS, THEY WERE A GOOD PRODUCT March 25, 2015
Rated 5.0 out of 5.0 by Super for Lam lay up ! I have bought 14 of these for making curved bent chair frames excellent bang for your BUCK ! John from Cape Cod. December 9, 2014
Rated 5.0 out of 5.0 by Great value for the money . For the price , this series clamp is really one you think about before other "cheaper" models. As a professional finish carpenter I find myself reaching for these, because they get the job done . From cabinetry installation to material glue ups , I cant recommend others in this price range. If only they were more available , store to store. September 16, 2014
Rated 5.0 out of 5.0 by Extremely sturdy with great clamping power. These clamps in my opinion are a must have. Though they are a great value for the quality of the product I personally could not afford to have all of my clamps to be such high quality. So I mixed these in with some cheaper clamps in my set. The combination works great. I use these clamps for the main strength of a project while I use my old ones for additional support. These clamps are a must have. April 22, 2014
Rated 5.0 out of 5.0 by well made Not a whole lot to say about these other than they're my favorite clamp. May 15, 2014
Rated 5.0 out of 5.0 by Quality product Works great and lasts. Larger sizes are being used and all are a quality product. September 17, 2013
Rated 5.0 out of 5.0 by Great Clamps I have owned various Jorgensen clamps since the early 1980,s and have been pleased with their performance. These 24 inch HD clamps recently purchased are no exception. However I do prefer the wooden handles as opposed to the plastic but that is just me and does not detract from the clamps usefulness, quality, or value. May 15, 2015
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