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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.


Work Gear for Electricians and the Trades

#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: 3,875
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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