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#38504 - 05/24/04 04:20 PM Hammer drill for driving ground rods
Electric Ian Offline
Member
Registered: 02/10/04
Posts: 133
Loc: 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 04:26 PM Re: Hammer drill for driving ground rods
iwire Offline
Moderator
Registered: 01/05/03
Posts: 4391
Loc: 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
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#38506 - 05/24/04 04:42 PM Re: Hammer drill for driving ground rods
Attic Rat Offline
Member
Registered: 12/14/03
Posts: 524
Loc: 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..
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).]
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.."if it ain't fixed,don't break it...call a Licensed Electrician"
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#38507 - 05/24/04 05:05 PM Re: Hammer drill for driving ground rods
Attic Rat Offline
Member
Registered: 12/14/03
Posts: 524
Loc: Bergen Co.,N.J. USA
... I found it.. 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"
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#38508 - 05/24/04 06:09 PM Re: Hammer drill for driving ground rods
Ryan_J Offline
Moderator
Registered: 08/19/03
Posts: 1374
Loc: 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!
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Ryan Jackson,
Salt Lake City
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#38509 - 05/24/04 07:39 PM Re: Hammer drill for driving ground rods
Fred Offline
Member
Registered: 04/30/01
Posts: 449
Loc: 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.
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#38510 - 05/24/04 08:24 PM Re: Hammer drill for driving ground rods
BigB Offline
Member
Registered: 03/31/04
Posts: 719
Loc: 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.
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#38511 - 05/24/04 09:18 PM Re: Hammer drill for driving ground rods
caselec Offline
Member
Registered: 04/14/02
Posts: 558
Loc: 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
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#38512 - 05/25/04 03:00 PM Re: Hammer drill for driving ground rods
Electricmanscott Offline
Member
Registered: 01/12/02
Posts: 1457
Loc: Holden, MA USA
I have the same one as Attic rat. I have the ground rod attachment. Works very well for the money.
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#38513 - 05/25/04 03:05 PM Re: Hammer drill for driving ground rods
Bill Addiss Offline
Member
Registered: 10/07/00
Posts: 3875
Loc: 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??


Bill
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