Bosch AG40-85 4 1/2 Angle Grinder

Archived from the Tools In Action forum (Bosch). This thread is read-only.

Santi_78342Member since Jul 2015

Anyone have one? How do you like it? Looking at getting a new grinder and this one caught my eye. Will be used mostly for cutting tile and surface grinding concrete.

dwainMember since Aug 2013

Do people usually go for 4-1/2″ grinders in the US? Our electric grinders are 4″ or 5″, and I always recommend the 5″ for that extra bit of cut depth, without increasing the size of the unit (like a 7″)

Santi_78342Member since Jul 2015

Yeah, they’re pretty popular here in the US. Is it safe to use 4 1/2″ wheels, blades, etc in a 5″ grinder? 4 1/2″ stuff is way more readily available than 5″.

dwainMember since Aug 2013

Santi_78342 wrote:

Yeah, they’re pretty popular here in the US. Is it safe to use 4 1/2″ wheels, blades, etc in a 5″ grinder? 4 1/2″ stuff is way more readily available than 5″.

 

As long as the arbor/spindle is the same size (it looks like they are), absolutely! After some cuts a 5″ disc is only 4-1/2″ in diameter anyway 🙂

 

But if the 5″ is more expensive, and your always going to be buying 4-1/2″ discs anyway, not much point.

Santi_78342Member since Jul 2015

Well I only ask because I’m torn between this grinder and the Milwaukee 5″ 6117-33. I’m a Milwsukee guy at heart but I really like the slimmer handle on the Bosch. Hmmmm

dwainMember since Aug 2013

I have a slimline 5″ bosch and its been great. If its for concrete use, bigger disc and more power are what you should chase…

Santi_78342Member since Jul 2015

Thanks for your feedback Dwain. I think I will be picking up the Milwaukee 6117-33!

BK13Member since Nov 2013

dwain wrote:

Do people usually go for 4-1/2″ grinders in the US? Our electric grinders are 4″ or 5″, and I always recommend the 5″ for that extra bit of cut depth, without increasing the size of the unit (like a 7″)

I would guess 4.5″ grinders and accessories outsell 4″ and 5″ combined by 5:1, maybe more.

I’m curious about the grinder as well. I bought one of the 1380 Slims and it’s almost soured me from Bosch. I like my DeWalt grinder MUCH more than I like the Slim, and if you know how I feel about DeWalt, that speaks volumes….

dwainMember since Aug 2013

BK13 wrote:

I would guess 4.5″ grinders and accessories outsell 4″ and 5″ combined by 5:1, maybe more.

I’m curious about the grinder as well. I bought one of the 1380 Slims and it’s almost soured me from Bosch. I like my DeWalt grinder MUCH more than I like the Slim, and if you know how I feel about DeWalt, that speaks volumes….

 

wow. 

 

what don’t you like about the Bosch slim? It’s not super powerful, but it does me for a lot of tasks, and is WAY more comfortable than a larger, heavier grinder. I’m all about the comfort, and my hands aren’t particularly big. Also, at least in Australia, it is VERY cheap.

BK13Member since Nov 2013

Well, it’s noisy, feels kinda junky, and doesn’t have much power. I’ll admit that it is pretty light in the hand, but I’m an oversized brute and like the ergos of my 5″ Fein much better.

dwainMember since Aug 2013

BK13 wrote:

Well, it’s noisy, feels kinda junky, and doesn’t have much power. I’ll admit that it is pretty light in the hand, but I’m an oversized brute and like the ergos of my 5″ Fein much better.

 

I’m sure most would. But it’s not exactly an apples to apples comparison! The FEIN is probably 4 times the price…

BK13Member since Nov 2013

dwain wrote:

I’m sure most would. But it’s not exactly an apples to apples comparison! The FEIN is probably 4 times the price…

Well, yeah, kinda. I got a screaming deal on the Fein, so the Bosch was about 60% of the cost of the Fein. I understand that the 1380 is Bosch’s economy model, and I suppose it fills it’s role adequately, but for me personally, I should be looking a little more upmarket. What the heck, that’s why they sell Metabo and Fein, right?

BK13Member since Nov 2013

dwain wrote:

Do people usually go for 4-1/2″ grinders in the US? Our electric grinders are 4″ or 5″, and I always recommend the 5″ for that extra bit of cut depth, without increasing the size of the unit (like a 7″)

Hey Dwain. Do Bosch, Fein or Metabo offer 4″ angle grinders in Oz? Pretty much all I’ve found here is the Makita (which I have and really like).

Thanks, man!

dwainMember since Aug 2013

BK13 wrote:

Hey Dwain. Do Bosch, Fein or Metabo offer 4″ angle grinders in Oz? Pretty much all I’ve found here is the Makita (which I have and really like).

Thanks, man!

 

All those brands do, with the exception of FEIN, 4-1/2″ is their smallest. We also have Dewalt, Milwaukee, Makita and many DIY brands who offer 4″ grinders.

BK13Member since Nov 2013

Man, I’d love to get my grubby paws on a 4″ Metabo…..

BK13Member since Nov 2013

Yeah, one of those, too. I bought a bunch of 4″ wheels when a semi-local tool joint closed, and that would be way too easy to just use them on one (of my three!) 4.5″ grinders. But the real reason is I always want something I can’t have. Hello Bosch 12v brushless impact driver, Milwaukee Fuel M12 1/2″ impact wrench, Hazet hand tools….

You are the influencer. Post it to 4.4 million followers.

Hit record. We’ll handle the rest.

Upload your review