Our pick for a parallel clamp: Bessey K Body REVOlution parallel clamp, 24 in.

Bessey K Body REVOlution parallel clamp, 24 in.

Model KRE3524

Why we picked it

Parallel clamps have big, flat jaws that stay square to the bar, so a cabinet or drawer box comes out square and a panel stays flat. They're the upgrade once you're building furniture.

Wood Magazine tested eight parallel clamps and gave this one its top award: the jaws closed perfectly parallel and the bar flexed less than most.

731 Woodworks tested eight 24 in. parallel clamps for jaw and bar deflection and drop damage and picked the Bessey as best overall for build quality, warranty and the highest rated force in the test.

Specs (from the maker)

24 in. clamping capacity, 3-3/4 in. throat depth

1,700 lb rated clamping force

Spreads from 10-1/2 in. to 28-3/4 in.; converts without tools

Hex socket in the handle, so you can add force with a hex key

Keep in mind

They're expensive. Buy two in the length you need most and add more as projects call for them.

Where to buy

Sources for Bessey K Body REVOlution parallel clamp, 24 in.

What the sources found

Wood Magazine: Tested parallel-jaw clamps (external site, opens in a new tab) (independent test; checked October 15, 2026): Eight models tested head to head. The K Body Revo closed perfectly parallel, was among the least-deflecting bars and won the Top Tool award; Peachtree's clamp was the value pick.
731 Woodworks: The best parallel clamp for any budget (external site, opens in a new tab) (independent test, Sept 11, 2022; checked October 15, 2026): Tested eight 24 in. parallel clamps for jaw deflection, bar deflection and drop damage. Bessey was best overall; Harbor Freight's Bremen was the budget pick; Bora was the one to avoid.
Popular Mechanics: The best parallel clamps (external site, opens in a new tab) (independent review, Feb 8, 2023; checked October 15, 2026): A former carpenter's experience-based picks. Names the K Body REVO kit (two 24 in. and two 40 in. clamps) the best set, praising the build quality and the handle's steel socket for adding force with a hex key.
Fine Woodworking: K Body REVO clamp review (external site, opens in a new tab) (independent review, Dec 2008; checked October 15, 2026): Reviewed the earlier K Body REVO, the previous generation of this clamp. Found larger jaws and noticeably more clamping force than the original K Body.
Bessey: K Body REVOlution (KRE) spec sheet (PDF) (external site, opens in a new tab) (maker spec page; checked October 15, 2026): Lists the KRE3524 at 24 in. capacity, 3-3/4 in. throat, 1,700 lb rated clamping force and a spreading range of 10-1/2 in. to 28-3/4 in.

How we picked

We didn't hands-on test these. We picked them by reading independent tests, reviews and guides (Fine Woodworking, Wood Magazine, Canadian Woodworking, Popular Mechanics and independent YouTube testers), checking each maker's spec page, and looking at review counts at large stores. Every pick has at least three independent sources from at least two different outlets, including at least one independent test or review, plus the maker's spec page and review counts at large stores, all linked with each pick along with what each one found. We also looked for an F-style clamp pick but didn't find one with enough current independent coverage, so we've left that slot out for now. Prices, review counts and links were last checked on October 15, 2026; prices and stock change, so check the store before you buy.

No paid links. Every link on this page is a plain link: no affiliate codes or tracking, and no company paid or asked to be listed (disclosure). Links open in a new tab.

Some outlets we cite get review samples from tool makers; we don't use pieces a maker paid for or sponsored.