Whereas Letterman’s Grinder Women proved that the perfect use for an angle grinder is to let lovely ladies in bondage gear make sparks, it’s really one of many extra versatile instruments you possibly can maintain within the store. In fact, with nice energy comes nice duty: Get too set off comfortable and you’ll rapidly destroy your mission and your fingers. Right here’s your crash course to wielding one of many extra badass of the hand-held energy device style.
What: Angle Grinder
Why: There are few quicker methods to abrasively take away materials from metal, expecially with one thing handheld.
The place: $20 at Harbor freight, $100 for a reputation model at Dwelling Depot, and $200 for a candy Metabo like mine. A Harbor Freight grinder actually caught hearth in my palms. A sequence of DeWalt grinders from Dwelling Depot lasted for some time, however finally broke many times and once more. I’ve owned my Metabo for years and I can run all of it day with out discomfort as a result of it vibrates so little. You get what you pay for. That stated, you possibly can destroy 10 Harbor Freight grinders earlier than you’ve paid for a Metabo. In case you are solely going to have one grinder in your ship, I’ve discovered the 4.5-inch dimension to be essentially the most helpful.
When: Actually, as occasionally as doable. There are higher, quieter, and fewer messy methods to take away steel, however whenever you want one, you want one. They are perfect for de-burring, rounding corners, some shaping, and even sharpening drill bits when you find yourself within the subject. They’re indispensable for fixing fitment points whenever you go to assemble and weld.
Who: You, if you happen to ever work with steel in any respect.
Angle Grinding 101
As with energy instruments, all the time put on the right security gear and take note of your atmosphere. Put on security glasses and listening to safety. Sparks fly all over the place and don’t combine properly with eyeballs: Strongly contemplate sporting a flip down face defend.
The angle grinder is about so simple as a device can get. There’s a housing, a deal with, and a motor that spins as quick as 11,000 rpm. To the shaft of that motor, wheels of varied varieties—virtually all abrasives of 1 sort of one other—are hooked up.
The angle grinder is nice for doing a little fast shaping and steel elimination. I typically use it to roughly spherical off corners and take away burrs from shearing or chopping. Simply as you’ll with a sander on wooden, maintain it transferring and take a look at to not dig in. It may take away lots of steel in a rush, and if you’re not cautious, you’ll make a multitude of your workpiece. Go calmly.
For those who discover that you’re utilizing the angle grinder to take away a considerable amount of materials, it’s time to rethink what you might be doing. There are different methods to take away lots of steel, and virtually all of them are cleaner and faster than the angle grinder. Take a look at plasma chopping, oxy-acetylene chopping and a band noticed or port-a-band.
Superior Angle Grinding
Grinding wheels are only the start. Check out flap wheels (not well worth the cash normally for my part, however nonetheless neat), cutoff wheels, flat sanding discs with a backing wheel and wire wheels.
Cutoff wheels could make fast work of small cuts, particularly these the place it’s impractical to get a chopping torch or band noticed into place. I typically use cutoff wheels to dig myself out of the mess if I’ve some tack welds that have to be minimize out in order that I can modify one thing.
Sanding discs and the corresponding backing pad are essentially the most helpful software of an angle grinder, for my part, and spend way more time on mine than do grinding wheels. The backing pad will show you how to to make a flat floor together with your grinding and the sanding discs are far much less aggressive than a grinding wheel, leaving a smoother end.
Lots of people love flap wheels. They behave like a refined model of the flat sanding discs and are undeniably good. Nonetheless, in my expertise, they by no means final very lengthy, and they’re far dearer.
Wire Wheels on the angle grinder are nice for the courageous amongst you. Tons of of little tiny wires hooked up to a wheel spinning at 1000’s of RPMs—finally a couple of come unfastened and turn into projectiles that haven’t any drawback penetrating cotton shirts and even denims. I take advantage of them now and again out of necessity and/or stupidity to take away paint, galvanization and rust. I used to be eradicating beneath coating from an previous automobile physique with a wire wheel on a Harbor Freight grinder when the grinder caught hearth. I far want the cupped wire wheels, each for his or her effectiveness and their skill to remain collectively.
There are additionally some wheels on the market to chop numerous varieties of masonry, making the angle grinder helpful for not less than somewhat extra than simply steel.