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#37326 04/25/04 09:18 AM
Joined: Nov 2002
Posts: 558
G
Member
What are all you resi.guys using to drill Hardi-Plank siding?

The 2 different name brand holesaws I've been using, (Bi-Metal)are only good for a couple holes.

Will carbide holesaws hold up? Does anyone have a good source to buy them or an alternative?


Russell

#37327 04/25/04 10:25 AM
Joined: Oct 2003
Posts: 259
J
Member
What is Hardi-Plank siding?

#37328 04/25/04 01:20 PM
Joined: Jul 2002
Posts: 680
W
Member
I'm guessing its that concrete siding that looks kinda like wood when painted?

#37329 04/25/04 01:56 PM
Joined: Dec 2003
Posts: 886
H
Member
Cement board siding. That stuff has been around in many incarnations since the 50's so it's not new. The older stuff used to contain asbestos until about 1960 so be careful.

Yes, you want to use a hole saw with carbide grit rather than teeth. Will last a lot longer.

-Hal

[This message has been edited by hbiss (edited 04-25-2004).]

#37330 04/25/04 02:59 PM
Joined: May 2002
Posts: 1,716
R
Member
Hello Russell, hope all is well.

We use dry cut core bits for cutting composites. I don't know if anyone around your area carries these, but you can call "B and K Tools" in Asheville and tell them what you're after, they have a good size selection.

These bits can be used with 1/2" drill motors or side grinders with the appropriate adapters.

Roger

#37331 04/25/04 05:09 PM
Joined: Oct 2003
Posts: 259
J
Member
Would asbestos shingles be another form of this or acually what he is refering to? They are very thin maybe 1/4-3/8 inch. These were big in my area it seems and alot of times I find them under new siding. I use a roto zip and a resperator and a tile bit

#37332 04/25/04 06:49 PM
Joined: Dec 2003
Posts: 886
H
Member
Yes, they used to be called asbestos shingles and still are by some. They were the vinyl siding of the 40's and 50's. These were 1/8" thick and in the 60's 1/4" thick ones were introduced. I don't believe any of the 1/4" thick ones ever contained any asbestos though for many years the 1/8" ones did. Both styles are still available today for replacement use though obviously none contain asbestos.


The 1/4" ones were really not bad and will last forever with little maintenance. James Hardie and others made the 1/4" thick style available in long lengths rather than individual shingles. Same thing, new twist. I think this was introduced and became popular on the west coast because of their fire resistant properties and is now becoming popular throughout the US as a vinyl upgrade.

-Hal

#37333 04/25/04 09:32 PM
Joined: Nov 2002
Posts: 558
G
Member
Thanks for the replies fellas.

This is not the old asbestos siding,but is the cement board,Hardi-plank,or Hardi board,as Hal said.

It's becoming very popular on new homes and some commercial bldgs. here. I can be had with a "wood grain" look,and is hard to tell from wood until you drill it. I just haven't found a good way of dealing with it yet.


Thanks for the heads up Roger.And yes all is well.

Russell

#37334 04/25/04 10:00 PM
Joined: Jun 2001
Posts: 642
N
Member
Hardy plank is becoming more popular around here. I have found the carbide tipped hole saws drilled at slow speed work well and one saw lasted thru a 150 unit apartment complex and still have it.( avg of 4 holes/apt.) One of my JE tried to drill as fast as possible and went thru a hole saw a day till I made him slow the drill down when drilling.
Good luck


ed
#37335 04/25/04 10:08 PM
Joined: Jul 2002
Posts: 717
M
Member
Try using a roto zip with a tile bit in it. The tile bits are a bit pricey but they cut that hardyplank like it's made out of butter.

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