One Hand Bar Clamps

BESSEY POWERGRIP

Rubber, glue-resistant pads won't mar the workpiece

Get a grip fast with these new clamps.

4" throat depth for long-reach clamping hand screw lets you increase clamping pressure up to 1,000 lbs.

Ratcheting lever advances sliding jaw for 200 lbs. damping force

A clamp is a clamp, right? That's what 1 thought. I have my trust)- pipe clamps along with a good selection of bar clamps and C-clamps. And thev handle just about every clamping job 1 need them to. The trouble is, sometimes I need a third hand (or even a fourth) — fast. That's where these one-handed bar clamps come in.

Although they look t ke the bar clamps you may already own, these you can pick up and lock in position with one hand. One-handed bar clamps can be divided into two categories: heavy duty and medium duty. I'll start by taking a look at the heavy hitters. To find ou: where vou can get these bar clamps, turn to Sources on page 49,

HEAVY DUTY — HIGH TORQUE

Heavy-duty bar clamps work great for assembly work, like you see in the photo above. The two models shown in the photo at left are the Bessey PowerGrip (top) and the Jorgensen E-Z Hold (bottom). And as you can see, they have similar features.

RUGGED FEATURES. Both clamps are built around a beefy steel bar that resists flexing. The bar on the PowerGrip has an I-beam cross-section for even more rigidity. The metal sliding jaw is posi-

vy-duty steel bars prevent from flexing

All-metal construction stands up to any job

In-line grip and lever advances sliding jaw to exert up to 300 lbs. of clamping force —

tinned against the workpiece and held in place on the bar by small teeth. On the E-Z Hold, a multiple-disc clutch keeps tile jaw from slipping.

At the top of tlie sliding jaw, a hand screw lets you crank up the pressure to beween 600 and 1,000 lbs. The jaws on both clamps have removable, plastic pads to protect against marring the workpiece.

ONi-HANDED CONTROL The feature that separates these clamps from other bar clamps, however, is the lever located under the screw handle. This lever is linked to a ratcheting mechanism in the sliding jaw that advances the jaw forward with every squeeze.

The squeeze lever provides about 200 lbs. of clamping force. And as I mentioned before, after the clamp is set, you can tighten it down even more with the hand screw. On the PowerGfip the lever works from both the bar side and the handle side (inset photos at left).

MEDIUM DUTY — QUICK RESPONSE

Not every job requires a heavy-duty ciamp. For example, when you're clamping a jig to the workbench or holding small parts together. That's where the medium-duty clamps are handy. The jaws on these clamps are made from glass-fiber reinforced composite. But that doesn't mean these clamps are weaklings. They're capable of exerting up to 300 lbs. of force.

In tlie photo at right and in the box below you can see the three types of medium-duty clamps available. The most common are the pistol-grip style Irwin Quick-Grip> (see box below) and Craftsman (middle at right). The other two clamps are the Jorgensen E-Z Hold II and the Bessey Kliklamp. Instead of a pistol grip, the E-Z hlold II uses an in-line grip and lever (top.

JORGENSEN E-Z HOLD

In-line grip and lever advances sliding jaw to exert up to 300 lbs. of clamping force —

JORGENSEN E-Z HOLD

Fixed jaws can be flipped around to act as spreaders, see box below

Magnesium construction makes clamp lightweight yet strong

BESSEY KLIKLAMP

Fixed jaws can be flipped around to act as spreaders, see box below

Magnesium construction makes clamp lightweight yet strong

BESSEY KLIKLAMP

photo at right). The Kliklamp locks securely with a simple lever action on the sliding jaw (bottom).

ONE FOR EVERY JOB. Another great thing about these clamps is that there's a size to fit almost any job — from the smallest Kliklamp at 4" up to a "iO" Quick-Crip. They all come with rubber or plastic clamp pads that prevent marring the workpiece and resist glue.

These features alone might be enough to convince you to pick up a few of these clamps, but if you take a look at the box below, you can see several other options that make these clamps a must-have.

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