Cordless Tools - Wireless Revolution

The majority of the advancements in cordless technology have been with the batteries that power them as well as the chargers that keep them powered. While nickel cadmium (Ni-Cd) batteries are still widely used (along with slow chargers),...

...the newer tools such as the IQv Series and Milwaukee's V28 line use more powerful lithium ion (Li-Ion) battery-typically with a one-hour charger.

Next to the popularity of a pneumatic cut-off tool is the venerable 4/4 1/2-inch angle grinder. When it comes to surface preparation, to avoid dealing with tangled cords/hoses and still get the job done, consider the IQv Series 1/4-inch die grinder.

Don't let the size of the IR cordless fool you-it should be used more like an air grinder with smaller-diameter abrasives (heavier tasks such as grinding welds are better suited for a bigger tool).

With a 3M Roloc abrasive disc, the cordless die grinder was able to cut through layers of old paint without much effort. The tool knows its limitations, though, which you'll notice right away as it will react to being forced or put under excessive load by temporarily shutting off once the electronic motor control sensor is triggered.

You may recall the Apr. '10 issue ("Cuttin' Corners") where we featured the Excalibur 14.4-volt cordless shears. This is one cordless tool that is definitely able to keep up with the traditional electric- and air-power competition ... and ultimately cut corners around most of them!

On top of its powerful cutting capabilities, the Excalibur shears work like a set of handheld aviation snips-unlike other powered cutters, the unique blade design doesn't leave any leftover "curly cue" material.

The argument against having to deal with all the ancillaries when it comes to using air tools gets stronger when you're dealing with an impact wrench. Once again, one of the leaders in pneumatics has the cordless answer-the IQv 3/8-inch Square Drive Impactool, which features 150 lb-ft max reverse torque in one of the most durable packages you'll find.

Cordless tool aren't necessarily maintenance-free (angle heads on the cutter/grinder need grease weekly), but when compared to any air tool, well, the daily oiling can easily get overlooked-and when that happens, the poor tool gives out well short of its advertised lifespan.

It's been mentioned what vital role your air compressor plays in the overall performance of your pneumatic tools. Well, that's fairly simple-if you want to aptly support high-powered tools with your compressor, you need to ensure it's capable of producing more constant airflow than the tool requires. An under-powered and/or the wrong type of compressor will only slow the process-but a decent two-stage 80-gallon vertical, while overqualified in some respects, is going to dig into your pockets a lot deeper than Harbor Freight or Home Depot will ding you for. Instead, consider going cordless.