JET 577102 JBG-8A 8-Inch Bench Grinder Review

JET 577102 JBG-8A 8-Inch Bench Grinder Review

For many newbies, sometimes it’s not enough to start off with entry-level power tools. That’s because they’re often limited in their uses, they tend to break more easily, and you just can’t use them for too long.

That’s why quite a few experts in the field recommend that you get a bench grinder that costs within the $200 to $300 range. That should be good enough for your needs if you’re a DIY enthusiast. However, “good enough” doesn’t quite describe the JET 577102 JBG-8A 8-Inch Bench Grinder.

Features of the JET 577102 JBG-8A 8-Inch Bench Grinder

  • First of all, this is rated for heavy-duty operations. It comes with a 1-HP (8-amp) motor, which is about twice as powerful as most of the affordable entry-level hobbyist-grade grinding machines.
  • This comes with a single speed of 3450 RPM. That’s more than enough for most types of DIY grinding tasks, especially with 8-inch wheels.
  • You actually have two of these 8-inch wheels, with 36-grit and 60-grit options. They’re both an inch wide. The medium grit works quickly to grind away your rough edges while the fine grit is for more delicate tasks.
  • This is a hefty machine with a side-to-side measurement of 19 inches. It is 10 inches deep and 12.5 inches high. It weighs about 58 pounds, so it’s not really all that easy to move around.
  • It comes with a really heavy base
  • This is virtually made with all metal materials. The wheel guards are made of cast iron too. What’s more, it features ports for a dust collector.
  • What really ensures the smooth operation of this bench grinder is that it also has pre-lubricated ball bearings that are totally enclosed. These keep the spindle rotating smoothly as heck.
  • The spark guards and eye shields are also substantially large, and also easy and quick to adjust.
  • As a bonus feature, the toggle on/off switch has guard shields on the side, so you don’t accidentally toggle the switch as you work or as you replace the wheels.
  • It comes with a two-year warranty.


  • It’s great that it has a two-year warranty, but the truth is that it’s so solidly built that it feels like it will just run forever. Its design is so simple and basic that there’s very little that can go wrong with it. It runs very smoothly and you can hardly feel the vibrations.
  • This will work all day long if you want.
  • As it is quite heavy, there’s not much chance that the vibrations will cause the machine to walk off your worktable. It even has a rubber foot to keep it in place. But if you want, it’s possible for you to bolt down the machine onto your work stand to really ensure the stability.
  • The power is certainly something, especially if you’ve tried out the comparatively puny half-horsepower motors in other bench grinders. With this, you can work with your metal workpiece and not worry about pressing on the wheel too much. It will rotate at its 3450-RPM rate even if you put in a bit of force when you press down.
  • The spark guards are easy enough to adjust so that you can keep the sparks from hitting your face. They’re very large, as well. Of course, it still means you need to wear those safety goggles just to be safe.


  • The JET 577102 JBG-8A 8-Inch Bench Grinder employs a classic and proven design, but if there’s one thing wrong with such a classic it’s that there aren’t any lights. Yes, it’s true that you should really set up your workshop for adequate lighting to begin with. But this is a convenience that’s almost automatic for newer models. It can be annoying when you don’t see one.
  • It’s big and heavy, too, although the size and weight aren’t really problems per se. It’s just that this design is clearly not for any portable application. It’s a shame that you can’t easily bring this over to your friend’s house so you can help them out, and brag about your industrial-grade bench grinder, too.


This isn’t really a hobbyist-grade machine. It’s really more of an industrial-grade model, but with a hobbyist-grade price.

Check The Top 10 Bench Grinders In The Market Right Now.

What you have to realize about the JET 577102 JBG-8A 8-Inch Bench Grinder is that it’s a solid piece of work. It’s as if nothing can go wrong with it, so durability isn’t a problem at all.

In fact, with this you can do a much heavier workload than you were able to do with your run-of-the-mill entry-level grinder. This will offer you very quick work and reliable results, and you can depend on it on an everyday basis.

With its exceptional motor and 8-inch wheels, you’ll never again be satisfied with 6-inch wheelsand a puny motor for your DIY projects. Those models are for those who just want to sharpen cutting tools occasionally. For more serious DIY enthusiasts, the JET 577102 JBG-8A 8-Inch Bench Grinder is the one to buy—seriously.

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