Yup... three inch hole saw (kidding). I never have problems fishing wires...
:-))
3/8" for door and window contacts. This is also my "standard bit". The one I
carry is 18" long. 3/4" arbour for prewires and for drilling top and bottom
plates. 1/2" for most everything else. The 1/2" and 3/8" drills are "twist"
bits. I wouldn't recommend using speed bores (spade type) unless you can see
both sides of what you're drilling (a pre-wire for instance). For finished
houses, we have 3/8 x 6' and 3/8 x 2' "flexi-drills". These come in handy for
fishing wires as they have wire holes on both ends as well. Our trucks also
carry drill bit sharpeners. Black & Decker has a nice one.
--
Frank Olson
http://www.yoursecuritysource.com
Free listings for qualified alarm professionals!
When installing door contacts I often use a short 3/8" and a long 1/4" bit
(sometimes called a "feeler" bit). I have FAQ pages describing techniques
I've used during more than 20 years installing and servicing alarms. You
may find these helpful. The URL is below.
I also keep a set of paddle bits (aka "speed bores" or "spade bits") to bore
larger diameter holes through framing members. These come in real handy
when fishing wires for window sensors and such. You can drill a small
(3/8") hole in the window sill, put some cable into the wall cavity and fish
it out through a 3/4" hole through the firestop in the basement below. A
dab of "fire caulk" restores the integrity of the fire stop when you're
done.
There's much more to it than a short post here can cover. Check out my FAQ
website for lots more. If you need parts, I have an online store (URL in
tag line) which you may find useful.
Alarm and Home Automation System FAQ
http://www.bass-home.com/faq/masterfaq/faq.htm
Regards,
Robert
=============================>
Bass Home Electronics
2291 Pine View Circle
Sarasota · Florida · 34231
877-722-8900 Sales & Tech Support
941-925-9747 Fax
941-232-0791 Wireless
Nextel Private ID - 161*21755*1
http://www.bass-home.com
http://www.bassburglaralarms.com
=============================>
There are several drill sizes that are most commonly used. Most of the
residential recessed magnetic door & window sensors (contacts) are 3/8"
diameter. A few are 1/4" or 3/4" diameter but these are rarely needed for
residential work.
When installing door contacts I often use a short 3/8" and a long 1/4" bit
(sometimes called a "feeler" bit). I have FAQ pages describing techniques
I've used during more than 20 years installing and servicing alarms. You
may find these helpful. The URL is below.
I also keep a set of paddle bits (aka "speed bores" or "spade bits") to bore
larger diameter holes through framing members. These come in real handy
when fishing wires for window sensors and such. You can drill a small
(3/8") hole in the window sill, put some cable into the wall cavity and fish
it out through a 3/4" hole through the firestop in the basement below. A
dab of "fire caulk" restores the integrity of the fire stop when you're
done.
There's much more to it than a short post here can cover. Check out my FAQ
website for lots more. If you need parts, I have an online store (URL in
tag line) which you may find useful.
Alarm and Home Automation System FAQ
http://www.bass-home.com/faq/masterfaq/faq.htm
Regards,
Robert
=============================>
Bass Home Electronics
http://www.bassburglaralarm.com
=============================>
Mike Said:
You don't install alarms -4got -MORON
Mike, Sr.
33 Years in the trade
http://www.AlarmServicesInc.com
http://www.AlarmSuperStore.com
"Your One Stop Alarm Shop"
Subject: Re: Drill bit Size ?
From: "Robert L. Bass" rober...@comcast.net
Date: 7/7/2004 10:15 AM Eastern Daylight Time
Message-id: <zqSdnSMLWMH...@giganews.com>
There are several drill sizes that are most commonly used. Most of the
residential recessed magnetic door & window sensors (contacts) are 3/8"
diameter. A few are 1/4" or 3/4" diameter but these are rarely needed for
residential work.
When installing door contacts I often use a short 3/8" and a long 1/4" bit
(sometimes called a "feeler" bit). I have FAQ pages describing techniques
I've used during more than 20 years installing and servicing alarms. You
may find these helpful. The URL is below.
I also keep a set of paddle bits (aka "speed bores" or "spade bits") to bore
larger diameter holes through framing members. These come in real handy
when fishing wires for window sensors and such. You can drill a small
(3/8") hole in the window sill, put some cable into the wall cavity and fish
it out through a 3/4" hole through the firestop in the basement below. A
dab of "fire caulk" restores the integrity of the fire stop when you're
done.
There's much more to it than a short post here can cover. Check out my FAQ
website for lots more. If you need parts, I have an online store (URL in
tag line) which you may find useful.
Alarm and Home Automation System FAQ
http://www.bassburglaralarm.com
Regards,
Robert
=============================>
Bass Home Electronics
http://www.bassburglaralarm.com
=============================>