Popular Woodworking 2008-06 № 169, страница 18

-• Tool Test ■-

BY THE POPULAR WOODWORKING STAFF

Get a (Soft) Grip on Drill Chucks

Jacobs Chuck's SoftGrip-series of chucks increase hand torque to make drill-bit slippage obsolete.

l—ike most woodworkers, we here at Popular Woodworking are fond of our cordless drill/ drivers. So when two officials from Jacobs Chuck Manufacturing Co. showed us a new aftermarket keyless chuck, they had our complete attention.

The SoftGrip chuck replaces the stock chuck on most drills with keyless chucks, no matter if it's a ³/s" or ^l/i" chuck, single-sleeve or double-sleeve. There are a number of advantages to the SoftGrip that are obvious and unexpected.

The chuck is noticeably easier to close than a hard metal or smooth plastic chuck. And that's thanks to its soft, nubby, almost gummy-worm-like feel. You can really get a grip on the chuck to close it on the bit, which is great for anyone who su ffers from arthritis or anything else that reduces his or her grip.

The soft grip isn't just something molded

Brute force. After five or six drills, we found the best way to remove the old chuck was to clamp the drill to the benchtop then knock the hex-head wrench to loosen the chuck.

onto the outside ofthe chuck. It's integrated into the structure ofthe chuck using a proprietary double-injection molding process, according to Mike Goodson, the core products development manager for Jacobs.

What that means for you and me is that the soft surface isn't going to peel off in use.

The SoftGrip can be lighter in weight than your stock chuck. For example, our stock Makita chuck weighs 9.2 ounces and the SoftGrip 3000 series chuck for that drill weighs 5.6 ounces. That weight difference is noticeable when you hold the drill and can also increase your drill's run-time by about 10 percent, according to James Hou, the product marketing manager.

However, the weight savings are mostly in the SoftGrip 3000 series of chucks, which use more aluminum in their construction. The industrial version ofthe SoftGrip, the 6000 series, has more steel in its construction, which adds weight. Our stock Hitachi chuck weighs 9.3 ounces. The SoftGrip 6000 replacement weighs 10.2 ounces.

The only other consideration with the Soft-Grip is that you have to get your old chuck off. Sometimes this is easy, and sometimes it is not - as 1 found out as 1 replaced the chucks on several drills. Here's the drill (sorry 'bout that): Remove the screw inside the chuck that

Jacobs Chuck - 864-654-5926

or jacobschuck.com Street price - $25 - $32

For more information, circle «154 on Free Information Card.

secures it to the drill motor. It's a reverse-thread screw, so it's righty-loosey. Then you chuck a large Allen wrench into the jaws of the drill and knock the Allen wrench with a hammer to spin the chuck counterclockwise. This loosens the chuck and you then unscrew it off. Adding the SoftGrip is even easier (instructions are included).

I had no problems replacing the chuck on our Milwaukee and Hitachi drills. Our Makita gave us a little bit of a fight, but after a few love taps the chuck came loose. But the Ridgid drill simply refused. Everyone tried it (we even fetched former Senior Editor David Thiel - a brute - to try it).

We eventually got the chuck off- along with the drill's clutch assembly, spilling ball bearings everywhere. Not good. Perhaps our chuck was torqued on by a particularly sprightly robot. Who knows? So do take care when removing your chuck.

Bottom line: We like these SoftGrip chucks and have been pleased with them in our shop. The chucks are now available from Home Depot and Lowe's.

—Christopher Schwarz

12 ■ Popular Woodworking June 2008