The air angle grinder is a powerful and useful tool to have around the shop. For as little as .99, you can have an angle grinder that is capable of 20,000 rpm's in your hand to grind or cut to your heart's desire. The secret to not overheating a device like this is in their ball bearing use in the working mechanism of the tool. When lubricated properly, this will spin at a high velocity for any needed time. The average air inlet of a tool with this capacity is ¼ inch collet that needs 3 CFM at 90 psi. The weight of this tool is only 1 ¼ lbs.
There are also larger more powerful air angle grinders available. The top of the line models will require two hands to operate safely. With rpm's reaching 12,000, nearly a full horsepower of torque is possible but the CFM requirement is 9.
Dewalt Reciprocating Saw
The more power that is desired will require a greater flow of air through your tool. If looking for brute force, go with the highest CFM. Speed is relevant but not if the power is also there.
As with all air or pneumatic tools, they must be lubricated. If the air supply does not have an oil drip system in it, then an addition of oil to the tool through the air inlet before each use is recommended. Marvelous Mystery Fluid or ATF are the two most common in the professional shops.
The air angle grinder is an indispensible part of any well-equipped metal or mechanical shop. Most have more than one.
Christmas Sales Factory-Reconditioned DEWALT DC385KR 18-Volt Ni-Cad Cordless Reciprocating Saw 201
Dec 14, 2011 23:34:42
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Christmas Sales Factory-Reconditioned DEWALT DC385KR 18-Volt Ni-Cad Cordless Reciprocating Saw Feature
- 1-inch stroke length, 2,900 strokes per minute
- Keyless blade clamp system makes it easy to change out a blade without touching used blade or shaft
- Open-topped shoe pivots, so visibility is never impaired
- Blade reverses when doing flush or plunge cuts
- Trigger lock provides reduced hand fatigue
Christmas Sales Factory-Reconditioned DEWALT DC385KR 18-Volt Ni-Cad Cordless Reciprocating Saw Overview
Hands down, we love this saw. It's packing as much power as its corded colleagues—-maybe more—-but with the awesome convenience of a cordless. It sacrifices nothing in the way of strength or guts with its 1-inch stroke length and 2,900 strokes per minute. It's relatively lightweight for its power, but the battery does add some heft to it, and that's really the only less-than-perfect feature about it. The keyless blade clamp system lets you change out a blade without even touching the used blade or reciprocating shaft. We like that the open-topped shoe will pivot, so your visibility is never impaired. The trigger is encased in the same hand-friendly compound that wraps the handle grip as well as the front boot grip, and it's total comfort in your hand. We always like a trigger lock for reduced hand fatigue, too, and this one's got it all. Another great feature is that the blade reverses when you're faced with flush or plunge cuts. For speed, power, quality and cordless convenience, we give this saw two thumbs up. -- Kris Jensen-Van HesteSAVE NOW on Christmas Sales Offers below!
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