Hi, I'm looking for a good hammer/impact drill driver drills through concrete.
I've already got a lithium powered compact drill, which doesn't do the concrete job properly. As a result, I don't mind having one with cord or relatively larger this time.
Which is the economical model under Bosch for this purpose? Or there's other reliable alternatives?
Just some basic domestic use, such as drill holes for blinds/curtains, drill holes for towel holder. I'm not sure about technical specs, will check with my partner later.
Ahh, if it's not heavy use then something like an Ozito will work just fine.
http://www.bunnings.com.au/ozito-850w-rotary-hammer-drill-ki…
A lower-powered bosch is $159:
http://www.bunnings.com.au/bosch-professional-550w-corded-ro…
Keep in mind you'll need special SDS drill bits. They aren't too expensive compared to normal good-quality bits, but they do cost more than the crappy standard cheapies you can buy.
Thank you.
When I went to local Bunnings, the Bosch available at the moment was the 750 Watts one(there's another 600w one at $99): http://www.bunnings.com.au/bosch-professional-750w-13mm-cord…
I tried comparing them http://www.bunnings.com.au/compare?products=6200049,6200280,
Not much I could be told, other than the 550W one is longer and wider.
Why would this higher power one be cheaper than the 550W one? Would this $129 one do the job?
The smaller one is a normal hammer drill while the longer one is a rotary hammer.
The difference is the way the bit is pounded into the concrete.
A hammer drill produces the hammer action by toothed gears, so the hammering action is limited.
A rotary hammer uses a piston, similar to a jackhammer. The resulting hammering action is much greater. If you pull the chuck on a rotary hammer in and out, you'll notice that there's much greater travel than the "clicks" on a hammer drill.
That's why the higher powered one is cheaper - it uses a more basic mechanism.
If you're just drilling small ~5mm holes, the difference might not be that great. If you're drilling larger 8-10+mm holes, you'll definitely want a rotary hammer - they punch through concrete like a normal drill goes through wood. :)
make sure you get the li-ion batteries. avoid nicad. you will thank me later
How to find out? Didn't see batteries stated in the attributes in the comparison page
found the $99 one on the website: http://www.bunnings.com.au/bosch-professional-600w-13mm-cord…
http://www.bunnings.com.au/compare?products=6200049,6200280,…,
How about the $99 one?
It's a normal hammer drill. You already have one, so you might as well get a rotary hammer instead. You'll be amazed at how easy it is to drill through concrete with one, compared to a hammer drill.
You want a rotary hammer. How much drilling do you have to do, and what size hole?