Dewalt 20Volt Rotay Hammer Drill

Does anyone have any experience with this? lowes.com/pd_134712-70-DCH2…

The reason I'm interested in it is because I already have a few of the 20V batteries for my other Dewalt power drills. Does the extra 16V of a 36V make that big of a difference?

36V makes a HUGE difference depending on the stone you are drilling.

if you have the batteries and chargers 20v is fine, especially if you have extra batteries already. its all about amount of holes really, an 18v Bosch drills almost as fast as a 36v, just less gas in the tank.

Fall Guy wrote:if you have the batteries and chargers 20v is fine, especially if you have extra batteries already. its all about amount of holes really, an 18v Bosch drills almost as fast as a 36v, just less gas in the tank.

This is not true if you are referring to the old 18 volt bulldog. In southern Arizona granite the newest 36v drill will sink between 20-24 3/8ths by 3 inch long holes at 15 seconds each. The old 18 volt bulldog takes close to 2 minutes per bolt. I have timed them both many times and used both since the mid 1980s.

1Eric Rhicard wrote: This is not true if you are referring to the old 18 volt bulldog. In southern Arizona granite the newest 36v drill will sink between 20-24 3/8ths by 3 inch long holes at 15 seconds each. The old 18 volt bulldog takes close to 2 minutes per bolt. I have timed them both many times and used both since the mid 1980s.

yeah, I use these things daily, the new 18v rotary kicks ass, just a shitty battery life. especially considering weight into the factor

btw you sure get a bunch of hole per battery, maybe its the heat(warm batteries) down there. cant say I've ever timed them but its the ease of drilling and not the speed I notice in gneiss and basalt.

Thanks for the responses!

Here is the blurb from the Bosch forum post. It is 379 when you add it to the cart and comes with two batteries.

toolnut.com/ProductDetails.…

I've got the 20V SDS DeWalt. Bought it this summer. 2 packs are good for all day long bolting lines... Granite at that. Was going to buy a 36V hilti, got cheap and am VERY happy with the drill I got. Refurb, $300. Works like a top for me. Thats the exact drill I bought btw...

That's great news, Rockbanned. The Hiltis are pretty damned expensive.

Yea battery and charger not included , so I guess this thing will cost as much as a Bosch by the time you purchase the battery n charger . Damn I was hopin for a less expensive replacement for the 500.00 Bosch . We're not even going to mention a hilti.

As far as the 36v is concerned , I've owned 2 new bosch hammer drills and I can honestly say I've never quite got 20 holes in good solid granite before the thing started chugging down n drilling like shit . This is with the el cheepo ( 7.00 bucks at home depot) bits mind you , could never really see the point in spending upwards of 40.00 per bit for the drilling I was doing as none of it involved placing protection bolts . All that being said sounds like a pretty sweet deal for someone like yourself with battery's and charger to spare .

If I was in the position your in with the charger n batteries I'd prolly pull the plug n buy one and if it held up like a Bosch or hilti then bonus !

iceman777 wrote:Yea battery and charger not included , so I guess this thing will cost as much as a Bosch by the time you purchase the battery n charger . Damn I was hopin for a less expensive replacement for the 500.00 Bosch . We're not even going to mention a hilti. As far as the 36v is concerned , I've owned 2 new bosch hammer drills and I can honestly say I've never quite got 20 holes in good solid granite before the thing started chugging down n drilling like shit . This is with the el cheepo ( 7.00 bucks at home depot) bits mind you , could never really see the point in spending upwards of 40.00 per bit for the drilling I was doing as none of it involved placing protection bolts . All that being said sounds like a pretty sweet deal for someone like yourself with battery's and charger to spare . If I was in the position your in with the charger n batteries I'd prolly pull the plug n buy one and if it held up like a Bosch or hilti then bonus !

I know this is late, but mine came with 2 batteries, charger and case. I just checked, it was $329.70 shipped to my door.

amazon.com/gp/product/B000H…

Side note. I buy ALL Fixe hardware. Bits are like $12. They are SDS+, but they are compatible with SDS drills. SDS and SDS+ are compatible. There's another type of SDS, called SDS Max, they DO NOT work with the previous.

I use 12mm for bolts and 3/8 for top anchors per their suggestions.

fixehardware.com/shop/drill…

I have some of the DeWalt 20V tools. You can get a burst of power out of those batteries, but they do not hold much capacity. At work I am constantly recharging them. Would not plan on using these to build sport routes, but a ground-up, occasional bolt route would be OK.
I have already replaced 2 of the batteries in just about a year too, so consider that. Next round of dead batteries and I'm moving on to Milwaukee.

I have an older DeWalt 18V drill which came with 2 nicad batteries. It works fine but nowhere near as good as my friend's 36V Bosch drill.

I had a battery pack die on me and bought one of these batteryship.com/htmlos/html… which I am very happy with.

I got 7 3/8 - 3 inch holes yesterday with the nicad battery pack in hard granite. I expect that I should get 11 or 12 holes with the LiIon pack which is also lighter.

I actually got the 18V NiCad. Just realized that. Dunno, I bolted with it all fall for 4 or 5 hours at a time and never had to switch a pack. That was using 12mm and 3/8" bits. It only takes about 10 seconds to drill a hole that's say 5" deep. Takes longer to clean it out. 60 seconds = 6 holes, say the thing will run for 20 min on a single pack, I doubt you'll be drilling more than 30 or 40 holes in a day??? It works fine for me and my buddies that set lines. Amazon has a 1 yr return, send it back if it doesn't do the job and save the $250. I can't say enough good about this drill. :-)

climber pat wrote:I have an older DeWalt 18V drill which came with 2 nicad batteries. It works fine but nowhere near as good as my friend's 36V Bosch drill. I had a battery pack die on me and bought one of these batteryship.com/htmlos/html… which I am very happy with. I got 7 3/8 - 3 inch holes yesterday with the nicad battery pack in hard granite. I expect that I should get 11 or 12 holes with the LiIon pack which is also lighter.

yes, the 36Volt drills are far better. Why not stop messing around and just get a Hilti 36Volt. Potato/Po-tot-oh... For 1/2" and smaller holes, the smaller drills work ok, as long as their SDS...

i have the 18v dewalt DC212B sds and it drills basalt just as good as a friends 36v bosch does, the only thing is the battery life but for a $40 swap meet find ill stick with my dewalt, plus the batteries work with my 8 other dewalt tools.

Rockbanned wrote:It works fine for me and my buddies that set lines.

you use a rotary hammer to set lines?

Rockbanned wrote: yes, the 36Volt drills are far better. Why not stop messing around and just get a Hilti 36Volt. Potato/Po-tot-oh... For 1/2" and smaller holes, the smaller drills work ok, as long as their SDS...

Price is the reason I bought the DeWalt. It works fine for my occasional need to put in a few bolts. I have other desires competing for my money.

They work fine in sandstone, put up around 100 sport routes in RRG with a Dewalt rotary hammer.

I notice the Amazon drill is labeled 18 Volt, whereas the Toolnut.com drill is a 20 Volt.
I heard a great review by a prolific bolter who has switched to the Dewalt and says it keeps up with everything else.

Adam Floyd wrote:I notice the Amazon drill is labeled 18 Volt, whereas the Toolnut.com drill is a 20 Volt. I heard a great review by a prolific bolter who has switched to the Dewalt and says it keeps up with everything else.

DeWalt makes 18V, 20V and 36V hammer drills.