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Originally Posted by ga-hvac-tech Update... finally had time to do some online research... came across this item: http://www.amazon.com/Bosch-RH328VC-...=bosch+rh328vc Anyone have experience with this drill? THX in advance for any posts. That is an SDS-Plus drill, and it will do more work than a regular SDS drill. Still no comparison to a spline drive or hex shank rotary hammer. If you plan to cut through 4" of concrete more often, or want to cut 4-1/4" holes in concrete with a percussion coring bit, then you want spline drive.
Originally Posted by ryan1088 We have a few bulldogs that we use but I don't know if they would do 4" of concrete.... The guy I ride to work with says the bulldog is as good as any of them. The Hilti we have is a beast but who can afford that? Agree... Hilti are just too much $$$. HD quit carrying them in my area... there were a few discounted ones... still lots of $$$.
Well i have owned this little puppy 7.5 amps of pure joy and power always served me very well always never got a problem. Higly suggested http://www.amazon.com/Makita-HR2475-...+drills+corded
We have a few bulldogs that we use but I don't know if they would do 4" of concrete.... The guy I ride to work with says the bulldog is as good as any of them. The Hilti we have is a beast but who can afford that?
Update... finally had time to do some online research... came across this item: http://www.amazon.com/Bosch-RH328VC-...=bosch+rh328vc Anyone have experience with this drill? THX in advance for any posts.
Ebay has refurbished bulldog extreme for $150. My company replaces our tools when they wear out/break so thats good enough for me.
Originally Posted by socotech Anybody used a Bosch Bulldog Extreme? I have had my eye on one of these, but never used one. This is one of the ones I am looking at... the 1-1/8" rated unit... not sure what that means. My current unit (about to die) is a 7/8" rated unit. HD has it for about 2-1/2 bills.
Anybody used a Bosch Bulldog Extreme? I have had my eye on one of these, but never used one.
I have gone Bosch for all corded and cordless tools. 3 year warranty, even for commercial. I stripped low range out of my 18V Brute Drill with about 40 days left on warranty. I abuse it pushing much larger bits and hole saws than it is designed for. Called, sent it in, they paid freight back, 1 week turnaround. I was impressed! CT
I have a Makita cordless hammer drill for the small stuff, works good, I've used a masterforce (menards store brand) drill worked well lots of power but the chuck wore out after a couple months and would not stay tight only used it on holes less then 1". For cored holes for vents and such I have a Milwaukee rotary hammer 3 and 4 inch core bits no problem and fast to, but core bits really slow down when you hit rebar
A buddy of mine has a tool repair business.... he swears by the bosch, but he does fix all of the rest... the bosch I picked out was the splined style (heavier duty) and was about 4 hundy.
I did a 4 1/2" hole in my home for a bathroom vent. Rented a core drill and bit from the local tool rental place. Was about $85 bucks. Did the job in under 10 minutes and made a perfect hole. As for replacing your drill, I used to work with a guy who had a Bosch. He was quite happy with it. I never had much opportunity to use it.
Bosch makes very good corded tools. You should look into " Rotary Hammer Core Bits". You could also look at a smaller Core set up. We had a Shibuya at my old company and it worked very well. You can find them for $1000 on ebay every now and then. They weight very little and are very easy to use and you can just go right through the rebar.
Electric (corded) hammer drills Last week, I did an HVAC job where I had to cut two 10x4 vent holes in the floor of rooms, through 4" of concrete. I do not do this often, however when I do it takes a LONG time (the first one was a little over an hour... the second was almost 2 hours due to rebar). While I was drilling, the chuck head (SDS style bit) loosed its grease seal and started throwing grease. I did finish the holes... however my gut instinct is this hammer drill is almost history (it is many years old). Generally, I use the hammer drill to cut holes for condensing furnace flues, ducts, and vents. I have been doing this with lots of 1/2" holes and use the chisel feature to chip out between the holes. I would like to use a hole saw for the PVC furnace vents though. I have lots of SDS bits. I was in HD today and looked at Makita, Bosch, and Hilti. The Hilti (HD is selling them off, they will not handle that brand anymore) is just too much $$$ for the amount I will use it. I kinda liked the Makita... yet am not sure if I want the 1" or 1-1/4"... The smaller one is a conventional design... straight drill with D handle at the back. The larger one is the angle design and appears more rugged. Price is $200 and $300... both come with a bonus 4-1/2" grinder. Does anyone have experience with these Makita hammer drills, are they durable, is the heavier one worth the extra $100, is the angle design a good idea or difficult to use? And if there is another brand I should look at, please suggest it. THX in advance for any suggestions.
Electric (corded) hammer drills
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