Makita Variable Speed SJS Angle Grinder Review

[@andy-jac]

You are the best. I get so tired of lame tool reviews from your competitors!

[@BigBear--]

You’re absolutely correct about lower speeds being actually more effective at certain operations. I just came up on that myself over the last couple of days having to wire brush a bunch of angle iron I’m prepping to fix a bed frame. When I had the grinder screaming at full blast, it would seem like initially it removed the rust and scale faster, but when I’d take a second look I started noticing that the brushes wouldn’t be able to really get in the small pits and channels in the steel without me wrenching down hard on it (which starts wearing out the brushes like crazy). When I slowed the grinder down to like a 3-4 (also a 4 1/2” Makita) it cleaned faster, and better, cause the brushes now had the time to actually get into all the small pits, and not skip over them. I also noticed that I had a lot more control, and could hit the edges easier without it kicking back on me.

[@nilsfrahm1323]

I just got a variable speed angle grinder, didn't use it yet. It amazed me that few models have variable speed, I am used to drills and sanders which all had variable speed, it seemed logical. On grinder, which runs very fast, it's very important to lower the speed, think lowest speed of grinder is 3000rpm, which is highest speed of a drill, just to imagine the scale. Drill has a centered drill bit, quite safe to spin and is limited to 3000rpm, while this large disk rotates at up to 11000rpm? just imagine the safety issues... And for sanding and brushing, you can just use it on speed 3 of 6, being a little bit more patient is fine, no rush. It would be faster than sanding with a sander anyway, especially on metal. Lower speed makes it more suitable for multiple tasks. Even on drills, having dual speed gearbox, plus variable speed + speed control based in the trigger, gives you all the control and torque you need. It's becoming the ideal tool.

[@BigBear--]

That’s cause most grinders, particularly larger models are mainly used to work on metal, at production speeds. They’re mainly used for grinding/flapping (with some occasional cutting). They need to last and be reliable. That’s why most don’t include a variable speed control, it’s not necessary, and just adds additional parts that can fail, or allow dust ingress. That’s mainly you find variable speed on smaller grinders, those generally are the ones you’d use for stuff like wire brushing at slower speeds.

[@Tom-Travels]

Good job C.M. I have a variable speed angle grinder, but since I got my variable speed Die Grinder, the V.S. Angle Grinder has gathered dust. - I put a 3" cut off blade with my V.S. Die Grinder and absolutely love it. It's like a giant Dremel. - - Just yesterday, I cut bolt heads off inside a toilet tank. With my normal speed die grinder or angle grinder there would have been sparks and debris flying everywhere, but with the V.S. die grinder it cut bolt heads quickly, cleanly, and with none of the high speed problems.

[@wayneo7307]

Thanks Catus , Makita Is The Best ! I Used Many Different Makita's Over the Years In Construction ! The Best Circular Saw 8 1/4" , 1/2" Drill , Reciprocating Saw etc. I Now Own the Makita 1/2" Compact XLT Cordless Drill Love It !

[@zylent8251]

Your knowledge about tools is really nice.Please do some metabo one.

[@scottcarlon6318]

Matabos are on another level, including price.

[@jamesjames5715]

soft start is nice !!

[@Sam-ch4jh]

I have Makita 250w variable speed drilling machine. If you use cobalt based drill bit (suitable to cut stainless steel) it works great in slow speed for most of the polymers and metals Similarly i have maktek sabre saw, the low speed works great in most of the cases

[@zylent8251]

Please do teardown and clutch demostration.

[@stephenmarshall3225]

Only thing I am finding with these grinders is the dust extraction is bad gets stuck around the brushes and shocks me through the case.

[@CatusMaximus]

I've heard about that especially when using grinders for polishing things like aluminum. I learned about that when I saw somebody with a large nine inch grinder with the brush covers missing and he said they just pack in within a couple hours and they just constantly have to blow them out so they just don't run them with the brush covers removed. Depending on what you're doing some Grinders and better than others. Dewalt makes corded brushless grinders that won't shock you but they will still clog up.

[@aunabreslingaming3279]

i'm trying to figure out the sound effect used in a game (not now, but i'm trying to figure out in general) where they use some ....random loudass machine sound and it revs up and down between high whiny vacuum and obnoxiously loud like fan cooled grinder (has a coffee grinder-like tone too, same motor so :u) but you talking about it's load compinsation/detection is exactly what _i_ was trying to reverse engineer as i wanna do something where it kinda does something similar and/or timed/random rpm variations or in the case just a generally smarter motor/voltage regulator design however you want to cut the cake

[@vasuram9392]

Machine correct model