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#38504 - 05/24/04 07:20 PM Hammer drill for driving ground rods  
Electric Ian  Offline
Member
Joined: Feb 2004
Posts: 133
MA, USA
I am in the market for a hammer drill that is capable of driving ground rods. What will give me the most bang for my buck (pun intended). Would appreciate specific model numbers along with recommendations. Thanks.


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#38505 - 05/24/04 07:26 PM Re: Hammer drill for driving ground rods  
iwire  Offline
Moderator
Joined: Jan 2003
Posts: 4,391
North Attleboro, MA USA
The bigger the better and make sure you get the attachment for driving rods.

The large SDS style chuck will take a ground rod directly but it can quickly break the chuck also.

We use a large Bosch but any large tool will do.


Bob Badger
Construction & Maintenance Electrician
Massachusetts

#38506 - 05/24/04 07:42 PM Re: Hammer drill for driving ground rods  
Attic Rat  Offline
Member
Joined: Dec 2003
Posts: 524
Bergen Co.,N.J. USA
... Hi,..I have a Hitachi,spline drive that was a great deal for the money..$379.00 and it has a twist knob that stops the rotation action and just hits,for use with ground rods,and chipping chisels..
It ain't a Bosch,but it acts like one.. [Linked Image] [Linked Image]
Russ

P.S....I used it for 2" core drilling thru brick and masonry,..no binding,because of the slip-clutch,it went like the devil,..Seriously,tho,it's a great drill if you need the model #,I'll look it up for ya,..
Russ

[This message has been edited by Attic Rat (edited 05-24-2004).]


.."if it ain't fixed,don't break it...call a Licensed Electrician"

#38507 - 05/24/04 08:05 PM Re: Hammer drill for driving ground rods  
Attic Rat  Offline
Member
Joined: Dec 2003
Posts: 524
Bergen Co.,N.J. USA
... I found it.. [Linked Image] DH38YE 1 1/2" Rotary Hammer Spline Shank

[This message has been edited by Attic Rat (edited 05-24-2004).]


.."if it ain't fixed,don't break it...call a Licensed Electrician"

#38508 - 05/24/04 09:09 PM Re: Hammer drill for driving ground rods  
Ryan_J  Offline
Moderator
Joined: Aug 2003
Posts: 1,374
West Jordan, Utah, USA
I never used the ground rod attachment. I always just took the pilot out of a hole saw bit and used the flat part of it. Worked very well, and less stuff to buy!


Ryan Jackson,
Salt Lake City

#38509 - 05/24/04 10:39 PM Re: Hammer drill for driving ground rods  
Fred  Offline
Member
Joined: Apr 2001
Posts: 449
Straughn, IN 47387
I have a Dewalt 1-1/2" spline drive hammer. I made a groundrod driver. I bought a short bull point chisel for a spline drive at a used tool flea market for $2.00, cut it off and welded a 10" piece of 3/4" rigid to it with stainless welding rod. It works great! I also made a 3/4" driving head that I have used to push 3/4" rigid under driveways with my rotary hammer. I just cut the rigid into 5' sections and thread them. Then drive a section about 4' then stop and thread on another section. Keep going until it comes out in the hole on the other side. You have to dig a 3' deep hole on both sides of the driveway but it beats cutting the pavement.


#38510 - 05/24/04 11:24 PM Re: Hammer drill for driving ground rods  
BigB  Offline
Member
Joined: Mar 2004
Posts: 719
Tucson, AZ USA
Here in the Arizona desert driving ground rods can sometimes be a real challenge. I use a 40 lb. Bosch demolition hammer with ground rod attachment. It was a $700 unit new but I've got a lot of use out of it. Just last week we had a house on bedrock 2 feet down. Tried 6 different locations around the house. Finally drove them at a 45 degree angle.


#38511 - 05/25/04 12:18 AM Re: Hammer drill for driving ground rods  
caselec  Offline
Member
Joined: Apr 2002
Posts: 558
San Jose, CA
I use a Bosch Demolition hammer. I have tried roto-hammers but they are too slow especially in hard soil.

Curt


Curt Swartz

#38512 - 05/25/04 06:00 PM Re: Hammer drill for driving ground rods  
Electricmanscott  Offline
Member
Joined: Jan 2002
Posts: 1,457
Holden, MA USA
I have the same one as Attic rat. I have the ground rod attachment. Works very well for the money.


#38513 - 05/25/04 06:05 PM Re: Hammer drill for driving ground rods  
Bill Addiss  Offline
Member
Joined: Oct 2000
Posts: 3,878
NY, USA
Anybody want to hear that on Long Island sometimes we have to tap lightly to keep the rod from going down too far??

[Linked Image]
Bill


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