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What Drill Bits do you Use?

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yodadave

Apr 3, 2013, 3:54 PM
Post #1 of 7 (4878 views)
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Registered: Feb 11, 2008
Posts: 510

What Drill Bits do you Use? Report this Post Average: (0 ratings)	Can't Post

I need a 12mm sds drill bit,
very occasional use in granite. Maybe 6 holes right now.

Recommendations?

mattm

Apr 3, 2013, 10:08 PM
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Registered: May 20, 2003
Posts: 640

Re: [yodadave] What Drill Bits do you Use? [In reply to] Report this Post Average: (0 ratings)	Can't Post

For the most part, any quality bit will be fine, esp for 6 holes.

http://www.fixehardware.com/...m-x-105mm-drill-bit/

billcoe_

Apr 3, 2013, 10:38 PM
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Registered: Jun 30, 2002
Posts: 4694

Re: [yodadave] What Drill Bits do you Use? [In reply to] Report this Post Average: (0 ratings)	Can't Post

yodadave wrote:

I need a 12mm sds drill bit,
very occasional use in granite. Maybe 6 holes right now.

Recommendations?

Sure, if this is for bolting, sell your metric wedge anchors and buy 1/2" diameter. I was picking up 6 packs of TE-C3X 1/2 " Drill Bits on Ebay for $35 each couple years back when I went drill/bolt batshit crazy.

When you're installing over 350 1/2 " x 7" long stainless wedge anchors with stainless hangers, nice to find another place to economize some. Keep an eye on them as they wear, if it wears on the side so that it's hard to install the bolt, replace the bit.

yodadave

Apr 4, 2013, 2:50 PM
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Registered: Feb 11, 2008
Posts: 510

Re: [mattm] What Drill Bits do you Use? [In reply to] Report this Post Average: (0 ratings)	Can't Post

thanks mattm

only problem is ill have to buy some aliens so i can qualify for free shipping ;)

mattm

Apr 4, 2013, 3:02 PM
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Registered: May 20, 2003
Posts: 640

Re: [yodadave] What Drill Bits do you Use? [In reply to] Report this Post Average: (0 ratings)	Can't Post

Ha - Yeah, I think I got mine when I did a hanger order. If you cruise the FS adds on MtnProj you might find a deal. I got two of my 12mm bits from a guy on there.

Never used these guys but an option - shipping looks to be $7.50 or so

http://www.buydrillbits.com/...ep2.php?s=SDS-METRIC

Syd

Apr 6, 2013, 9:16 PM
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Registered: Oct 25, 2012
Posts: 300

Re: [billcoe_] What Drill Bits do you Use? [In reply to] Report this Post Average: (0 ratings)	Can't Post

billcoe_ wrote:

[image]http://www.cascadeclimbers.com/plab/data/500/medium/Replacement_wedge_anchor.jpg[/image]

You don't use those bolts in sandstone do you ?

majid_sabet

Apr 7, 2013, 3:27 AM
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Registered: Dec 13, 2002
Posts: 8390

Re: [yodadave] What Drill Bits do you Use? [In reply to] Report this Post Average: (0 ratings)	Can't Post

yodadave wrote:

I need a 12mm sds drill bit,
very occasional use in granite. Maybe 6 holes right now.

Recommendations?

Hilti 2 or 4 head SDS . for 1/2 or 12mm on hard rock you want to drill in two steps. first use 1/4 " drill for pilot hole then 12mm .

you can buy good SS 1/2 bolt on ebay cheap.

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