Which mini jack hammer to get?

[rusnak]

Originally Posted by nostril cheese

you need a breaker. Seriously

^ +1

[DanielDudley]

A 90 LB pneumatic jack hammer would knock out over 100 Sq feet of that floor in less than 15 minutes. Figure out what you want to do, and then figure out what tool you need for the job.

What do you want to do there ? It looks to me like you need a demolition saw, so you can just neatly cut out the section you want removed.
Dice it up.

[look 171]

Rent one at home depot, buy a bit and be done with it. 50 bucks for the whole day? How much concrete are you looking to bust out? If any more then that hire someone with a hammer and a truck so you are not stuck with the broken concrete pieces. Getting rid of construction trash is a big pain in the ass. How your back again? If its good now, any more concrete removal will require your wife to give you a good back rub.

You want to drive up and borrow my hammer you are more then welcome to do so. It will hammer out all that in 30 minutes. Just don't smash your toes.

Why are you removing all the concrete in the bath?

[URY914]

Get one of these it will handle anything.......

[dad911]

I want one of these for demo:

[rnln]

I need something handy, not a big project right now. The main purpose for this is drilling holes into concrete for screws/bolts, breaking/chiseling is secondary, so I think the rotary hammer is what I need.
Thanks guys.

Look171,
Shower is done. Bath is pending . Nice offering J, thanks. Renting from HomeDepot is around $100 a day. How is your dad doing?

[rnln]

So other brands bit can work with Hilti drill, but Hilti bits can't work with other drills?

Originally Posted by billybek

Those will be fine for doing small jobs.
Not sure if either will work with Hilti brand bits. I find they last longer that the Bosch or generic bits.
If I was busting up a lot of concrete, I would go with a small electric jackhammer from a rental agency or look for one on Craigslist or Kijiji.
I have used a Hilti drill to drill concrete every six or eight inches along the break line then just used a sledge hammer to bust up everything I wanted gone.

[look 171]

Originally Posted by rnln

So other brands bit can work with Hilti drill, but Hilti bits can't work with other drills?

SDS Max or Spline is the one to buy. Good thing is that Hilti and their drills can be purchased through any industrial tool supplier. I think they take SDS Max.

My father is out of the hospital, and should be driving himself to check out other chicks in a few days. He can't wait. Thanks for asking.

[billybek]

I know that not every bit will work on every drill but it has been a while....
I seem to remember the Bosch bits having an extra cut or milled area in the shaft where they locked into the chuck.
Hilti did make the best bits.
Hammer Drill Bits - SDS vs. SDS Plus vs. SDS Max vs. Spline Drive
Some info here.

[look 171]

SDS plus are for smaller or narrower bits and the Plus is for the larger diameter bits

[rnln]

Originally Posted by billybek

I know that not every bit will work on every drill but it has been a while....
I seem to remember the Bosch bits having an extra cut or milled area in the shaft where they locked into the chuck.
Hilti did make the best bits.
Hammer Drill Bits - SDS vs. SDS Plus vs. SDS Max vs. Spline Drive
Some info here.

Thanks look171,
So SDS max or Spline can take SDS and SDS plus bits?

Bill, If I need to get the bit that is made by the same drill manufacture, then I would just get home depot stuff, because I don't like the hassle. If most bit can go in most drill, let say Hilti or Bosch, then I would consider it. I like to be able to stop by home depot and grab some bits when I need them.
Thanks.

[look 171]

Originally Posted by rnln

Thanks look171,
So SDS max or Spline can take SDS and SDS plus bits?

Bill, If I need to get the bit that is made by the same drill manufacture, then I would just get home depot stuff, because I don't like the hassle. If most bit can go in most drill, let say Hilti or Bosch, then I would consider it. I like to be able to stop by home depot and grab some bits when I need them.
Thanks.

SDS plus will only fit SDS hammers and same for SDS Max. They are different shank size. Those bits can be purchased anywhere including Home Depot. It sound like you need a small roto-hammer with a selector for chipping. Don't hole your breath on the chipping with it. It will be just a little slower then watching paint dry, but will work.

Get a mid size Hitachi or Makita. They are usually a few bucks cheaper then the Bosch or Hilti. Those bits mentioned above will for all those hammers, you just need to decide on the size and shank style. I say the SDS Max because you will always have the option for a larger drill bit, but its heavier and bulkier.

[rnln]

Look171,
I saw a used Bosch 11248 for $280. It's SDS max 10 amp. What do you think about Bosch 11248?

[joe payne]

You may be able to rent a Hilti. We used to rent them when I worked for the company back in the early 90's.

[look 171]

I have one of those. Great tool. I don't use it all that much because my workmen have their own now. I btiched about them abusing my stuff so they got tired of my ass and bought their own. somehow, their own tools are pretty damn clean and well taken care of.

Make sure the tool isn't beat to hell and check the brushes and see if they are worn. If so, they have been around the block, but those things last a long time if now abused.

[look 171]

If you ever need to drill some large holes, I should have bits you can borrow. Those big bits can run you 200 bucks

[rrental]

As a former rental shop owner I can tell that you will not buy a good HD jackhammer for under $ 1000. Renting is the way to go IMO. We charged $ 65/day including bits for the large Bosch Brute.

In the 40 years of operations the only brands we bought where Kango (Atlas Copco, now Milwaukee), Bosch Brute and Hilti.

With Hilti being the undisputed no.1. This said, the Milwaukee's have done very well for us.

[javadog]

As an example of what an air-driven jackhammer can accomplish if used properly, this is a photo of a driveway in my neighborhood getting replaced. Less than an hour after pulling up to the house, one jackhammer and one bobcat have essentially removed the entire driveway, roughly 20' wide and 30' long. In this picture, the hammer is already done and put away and the bobcat is piling up what's left of the pieces. 30 minutes after this photo was taken, the pile was loaded and gone.

This is why I think electric hammers are essentially toys and why you should rent the biggest thing you can from a rental shop, once in a blue moon for whatever removal you need to do. Buying an inexpensive hammer drill for installing tap-cons and the like is fine, as they don't cost much more than a regular drill and can be used for other things.

[rusnak]

^ Notice you slipped in the "one Bobcat" in there, lolz

Oh suuuree...you used the air driven jackhammer on that. Nice interwebz debate response there.

[javadog]

Originally Posted by rusnak

^ Notice you slipped in the "one Bobcat" in there, lolz

Oh suuuree...you used the air driven jackhammer on that. Nice interwebz debate response there.

That concrete was broken up with one man on a 90 pound hammer. The bobcat piled up the pieces in the street, then loaded them into dump trucks.

The bobcat didn't break anything, there was no hammer on it.

And, I had nothing to do with it. Not my job, not my house. I was just illustrating the point that there's a professional way to knock things out and the DIY-take-all-weekend approach. You can take that lesson and apply it to tools, which is the point I was trying to make.



I used that smiley, since I can't find one that gives you a Rockefeller salute. Use your imagination.

JR