Drilling t_post holes in rock?

[texasjohn]

Sounds good, Birdhunter1..... what were the components you used... a drill... a hammer drill... a grinder... ?? to power the 2 inch drill... how did the bit attach to the rotating device and where did you get the drill from/cost? Is it the kind with slots in the tip or was the tip solid all around the cutting edge? diamond bit or carbide? I'm learning that all these matter in various ways.. wondering what worked for you.

 

[texasjohn]

Sounds good, Birdhunter1..... what were the components you used... a drill... a hammer drill... a grinder... ?? to power the 2 inch drill... how did the bit attach to the rotating device and where did you get the drill from/cost? Is it the kind with slots in the tip or was the tip solid all around the cutting edge? diamond bit or carbide? I'm learning that all these matter in various ways.. wondering what worked for you.

 

[Kyle_in_Tex]

</font><font color="blue" class="small">( Anybody know of another location to get the 1.5 inch masonry drill other than the one that I linked to in the first post? )</font>

John, try the Black and Decker / Dewalt service store in Austin. Call first. They had a bunch of different sizes about 2 months ago in the bargain bin for Cheeeeep prices! I don't know if they had 1.5" size

I would think if you got down 6" it would be plenty. What about cutting a point or taper with a torch. Then you could use a smaller bit.

 

[Kyle_in_Tex]

</font><font color="blue" class="small">( Anybody know of another location to get the 1.5 inch masonry drill other than the one that I linked to in the first post? )</font>

John, try the Black and Decker / Dewalt service store in Austin. Call first. They had a bunch of different sizes about 2 months ago in the bargain bin for Cheeeeep prices! I don't know if they had 1.5" size

I would think if you got down 6" it would be plenty. What about cutting a point or taper with a torch. Then you could use a smaller bit.

 

[jinman]

Can't say I've had experience, but this seems to be the way I'd go if I had a lot of holes to drill. They are in Belton, Tx.

Belltec T-Post Rock "Puff" Drill

 

[jinman]

Can't say I've had experience, but this seems to be the way I'd go if I had a lot of holes to drill. They are in Belton, Tx.

Belltec T-Post Rock "Puff" Drill

 

[texasjohn]

Kyle, thanks for the pointer to the black and decker service center... didn't know about it, will call Mon. and see what they have.

jinman, yep, the puff drill is the way to go if I decide to spend that much money.... it is advertised on the net for $286 plus shipping. But, Beltec is only about 20 miles from me. They do make good stuff!

I found some folks on the net who seem to have done what I am interested in doing. .

I measured the t post... it is 1.25 inches across and 1.0 inches deep.... so a 1.5 inch carbide bit should do the trick... just need to find one. I agree that only a few inches of hole are needed... probably 5 or less...

 

[texasjohn]

Kyle, thanks for the pointer to the black and decker service center... didn't know about it, will call Mon. and see what they have.

jinman, yep, the puff drill is the way to go if I decide to spend that much money.... it is advertised on the net for $286 plus shipping. But, Beltec is only about 20 miles from me. They do make good stuff!

I found some folks on the net who seem to have done what I am interested in doing. .

I measured the t post... it is 1.25 inches across and 1.0 inches deep.... so a 1.5 inch carbide bit should do the trick... just need to find one. I agree that only a few inches of hole are needed... probably 5 or less...

 

[Birdhunter1]

I was using a Milwaukee SDS rotary hammer and this Core bit that a buddy of mine had.
The core bit says it only has a usable depth of 3" which is true, that is until that core of concrete is taken out and you start driling again. Most tool rental places (anywhere you coudl rent a Bobcat/chipper/manlift/etc should/will have them for rent.

 

[Birdhunter1]

I was using a Milwaukee SDS rotary hammer and this Core bit that a buddy of mine had.
The core bit says it only has a usable depth of 3" which is true, that is until that core of concrete is taken out and you start driling again. Most tool rental places (anywhere you coudl rent a Bobcat/chipper/manlift/etc should/will have them for rent.