SDS Max Rotary Hammer or Demolition Hammer??

T

Travisb6989

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Location
FL
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Electrician
Looking to get a new corded Milwaukee SDS max. Primary use will be on rough-ins to chip out block/concrete for switch boxes and outlets. Or even foundations for the missed walls on underground... :)

Torn between the Milwaukee 1 3/4 SDS max rotary hammer vs. the 1 3/4 SDS max demolition hammer. Guess I am just trying to figure out if the rotary is powerful enough to make easy work of solid block walls, as I would still be able to use it for core drilling. But is the demo only hammer really that much more powerful that it makes sense to have one dedicated to chipping and have a 2nd drill for concrete drilling...
 
I have a Bosch SDS-Max rotary hammer that can be set to rotate-hammer or hammer only.

I use the rotary feature to remove material before switching to hammer to shape the hole.
 
IMHO Rotary hammers can drill block, brick and concrete with concrete drill. Core bits on block and brick are ok but tough going in concrete. I would get the rotary hammer first and see how it goes.

I guess it depends. If you need to make holes in solid block walls the the demo hammer may be the better choice.
 
Depends on what you do more of, chipping or drilling.


I use my old chipper to drive ground rods.
I have separate core bits for a 5/8-11 grinder
 
I would say its 50/50 on drilling and chipping. We currently do both with a M18 rotary hammer and chipping takes forever and eats batteries. I am just not sure I need a dedicated demo hammer only for chipping as I am guessing that's still a huge upgrade over the m18 we use now. So the corded sds max rotary hammer may be good enough. But can't help think that the demo hammer only is significantly better given they are the same price.
 
Hv&Lv said:
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I have them from 1-1/2 - 6”
Click to expand...
Had no idea this was a thing. Guessing it works well?
 
I have the Milwaukee cordless hammer drill. It is the SDS Max. I use it for driving ground rods and also chipping out footers for underground service. Use a good chipping bit and it works great. Keep extra batteries charged if you have to do a lot of chipping. if the battery is good, I can usually get by with one battery. Occasionally I will need a second battery but not often.
 
There are only two kinds of hammer drills. Hilti, and everybody else!
 
I have the giant corded 1 3/4 SDS Max rotary hammer. In chipping mode I’ve demoed concrete sidewalks, foundations, stem walls, etc. it’s very powerful.

For just chipping out for boxes it’ll do fine. And with the drilling ability you’ll be able to set anchors and 100 other things.
 
Seven-Delta-FortyOne said:
I have the giant corded 1 3/4 SDS Max rotary hammer. In chipping mode I’ve demoed concrete sidewalks, foundations, stem walls, etc. it’s very powerful.

For just chipping out for boxes it’ll do fine. And with the drilling ability you’ll be able to set anchors and 100 other things.
Click to expand...
This was the answer I needed. Good to know hands on experience the big rotary hammer has that much power and def sounds like it will be fine for boxes and occasional slab fixes for underground. Going to get this one instead of the demo version, because as you said, its more versatile.
 
I have a bunch, but the most relevant are my corded Bosch SDS Max Rotary Hammer (has hammer only mode) and my M18 Milwaukee SDS Max Rotary Hammer (also has hammer only mode). They are similar in size, but the corded hits harder. I know because I've had multiple ground rods that stopped moving with the battery one, but went all the way with the corded.

Mark
 
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