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expiredaepro | Staff posted Apr 11, 2023 07:35 PM
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expiredaepro | Staff posted Apr 11, 2023 07:35 PM

Bosch 3/8" x 18" Installer Drill Bit

$6.65

$15

55% off
Amazon
30 Comments 13,612 Views
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Deal Details
Amazon has Bosch 3/8" x 18" Installer Drill Bit (BH2003T) for $6.63. Shipping is free w/ Prime or on orders of $25+.

Home Depot has Bosch 3/8" x 18" Installer Drill Bit (BH2003T) for $6.63. Shipping is free.

Thanks to Staff Member aepro for finding this deal.

Features:
  • Hole-in-flute design for fishing cable through drilled holes
  • 3-flat shank for reduced slippage
  • Extra length for deep drilling
  • Flutes are coated with black oxide for quick chip removal

Editor's Notes

Written by powerfuldoppler | Staff
  • About this product:
    • Rating of 4.5 from over 45 Amazon customer reviews.
  • About this store:
  • Additional note:

Original Post

Written by aepro | Staff
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Amazon has Bosch 3/8" x 18" Installer Drill Bit (BH2003T) for $6.63. Shipping is free w/ Prime or on orders of $25+.

Home Depot has Bosch 3/8" x 18" Installer Drill Bit (BH2003T) for $6.63. Shipping is free.

Thanks to Staff Member aepro for finding this deal.

Features:
  • Hole-in-flute design for fishing cable through drilled holes
  • 3-flat shank for reduced slippage
  • Extra length for deep drilling
  • Flutes are coated with black oxide for quick chip removal

Editor's Notes

Written by powerfuldoppler | Staff
  • About this product:
    • Rating of 4.5 from over 45 Amazon customer reviews.
  • About this store:
  • Additional note:

Original Post

Written by aepro | Staff

Community Voting

Deal Score
+27
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Price Intelligence

Model: Installer Bell Hanger Drill

Deal History 

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Sort: Lowest to Highest | Last Updated 9/17/2025, 08:38 PM
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Top Comments

aepro
4908 Posts
22173 Reputation
after drilling the hole, if the wall is open and you need to fish wire through the drilled hole, you can leave your bit through the drilled hole and tie your wire to the tiny hole in the bit to pull the wire back through when pulling your bit out. it can be especially helpful when drilling through multiple stacked 2x4s.
bwilliamsjr
170 Posts
81 Reputation
You guys suggesting to use conduit instead of drilling holes are completely missing the reason this bit is called an "installer" bit. It's made for telephone/coax/cat 5 wires to be installed by field techs, usually in existing structures.

29 Comments

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Apr 11, 2023 09:10 PM
2,542 Posts
Joined Jan 2007
gobblygookApr 11, 2023 09:10 PM
2,542 Posts
What does "hole in flute design" mean and how do I use it?
1
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Apr 11, 2023 09:15 PM
4,908 Posts
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aeproApr 11, 2023 09:15 PM
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Our community has rated this post as helpful. If you agree, why not thank aepro

Quote from gobblygook :
What does "hole in flute design" mean and how do I use it?
after drilling the hole, if the wall is open and you need to fish wire through the drilled hole, you can leave your bit through the drilled hole and tie your wire to the tiny hole in the bit to pull the wire back through when pulling your bit out. it can be especially helpful when drilling through multiple stacked 2x4s.
Last edited by aepro April 11, 2023 at 02:21 PM.
7
Pro
Apr 11, 2023 09:28 PM
962 Posts
Joined Sep 2020
BF_
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Apr 11, 2023 09:28 PM
962 Posts

Our community has rated this post as helpful. If you agree, why not thank BF_

Quote from gobblygook :
What does "hole in flute design" mean and how do I use it?
if you look at the picture of the drill bit, there is a hole in the middle or the 2nd turn of the bit allowing you to tie a string or wire to fish your line through after drilling the hole.
1
Apr 11, 2023 09:34 PM
30 Posts
Joined Jul 2019
Zu88Apr 11, 2023 09:34 PM
30 Posts

Our community has rated this post as helpful. If you agree, why not thank Zu88

Same price at HD

https://www.homedepot.com/p/Bosch.../204415305
3
Apr 11, 2023 10:11 PM
2,542 Posts
Joined Jan 2007
gobblygookApr 11, 2023 10:11 PM
2,542 Posts
Quote from aepro :
after drilling the hole, if the wall is open and you need to fish wire through the drilled hole, you can leave your bit through the drilled hole and tie your wire to the tiny hole in the bit to pull the wire back through when pulling your bit out. it can be especially helpful when drilling through multiple stacked 2x4s.
Thanks. I had missed that. It makes sense now
Apr 11, 2023 10:26 PM
138 Posts
Joined Mar 2007
klutchriderApr 11, 2023 10:26 PM
138 Posts
In for one thanks, will be using this when the house starts construction for low voltage wiring.
Apr 12, 2023 12:56 AM
666 Posts
Joined Jun 2008
QuixoticOneApr 12, 2023 12:56 AM
666 Posts
If one had the choice it would seem preferable to install conduit and possibly the wiring before the walls etc. are finished so one wouldn't have to do much drilling / pulling etc. afterward.

Quote from klutchrider :
In for one thanks, will be using this when the house starts construction for low voltage wiring.

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Apr 12, 2023 01:14 AM
777 Posts
Joined Nov 2009
FireStalkerApr 12, 2023 01:14 AM
777 Posts
Quote from klutchrider :
In for one thanks, will be using this when the house starts construction for low voltage wiring.
I agree with Quixotic. Use low voltage conduit and run your wire in there. Low voltage conduit isn't very expensive. And also leave an extra pull line in the conduit for the future. And remember, no hard bends for both ease of pulling wire, and because it is horrible for data transfer.
Apr 12, 2023 02:16 AM
170 Posts
Joined Apr 2016
bwilliamsjrApr 12, 2023 02:16 AM
170 Posts
You guys suggesting to use conduit instead of drilling holes are completely missing the reason this bit is called an "installer" bit. It's made for telephone/coax/cat 5 wires to be installed by field techs, usually in existing structures.
Apr 12, 2023 02:44 AM
2,729 Posts
Joined Jul 2014
b.armsApr 12, 2023 02:44 AM
2,729 Posts
Good deal on this one too:
5/8 In. x 16 In. Daredevil Extended Length Spade Bit: $3.96 free prime shipping
https://www.amazon.com/Bosch-Dare...B002BYWC86
Apr 12, 2023 03:21 AM
91 Posts
Joined Feb 2016
dealfrenzy32Apr 12, 2023 03:21 AM
91 Posts
I need to make a 4inch hole thru exterior siding/wood for new dryer vent. Should I buy this to make a pilot hole, and then follow thru with a 4" inch hole saw?
Apr 12, 2023 05:28 AM
3,810 Posts
Joined Aug 2005
labboyproApr 12, 2023 05:28 AM
3,810 Posts
Quote from bwilliamsjr :
You guys suggesting to use conduit instead of drilling holes are completely missing the reason this bit is called an "installer" bit. It's made for telephone/coax/cat 5 wires to be installed by field techs, usually in existing structures.
You're missing that they were responding to a poster planning to use this during new construction, when installing conduit would make more sense from a serviceability/future-proofing perspective.
1
Apr 12, 2023 12:21 PM
7,274 Posts
Joined Dec 2006
big mikeApr 12, 2023 12:21 PM
7,274 Posts
Glad I checked my old emails, apparently I have a 24" long 3/8 bit that is very similar from Irwin from a prior WOOT slick deal, lol, I knew I had one but couldn't remember what size/length.
Apr 12, 2023 12:23 PM
7,274 Posts
Joined Dec 2006
big mikeApr 12, 2023 12:23 PM
7,274 Posts
Quote from dealfrenzy32 :
I need to make a 4inch hole thru exterior siding/wood for new dryer vent. Should I buy this to make a pilot hole, and then follow thru with a 4" inch hole saw?
Probably not, you'll end up with a hole that is bigger than the pilot bit so the hole saw won't track as well going in the pilot portion plus as an installer bit this likely has some flex to allow you to drill through an opening in a wall down through the base plate/top plate etc so you wouldn't even end up with a straight pilot hole.

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Apr 12, 2023 02:34 PM
2,955 Posts
Joined Jul 2005
txabApr 12, 2023 02:34 PM
2,955 Posts
Quote from dealfrenzy32 :
I need to make a 4inch hole thru exterior siding/wood for new dryer vent. Should I buy this to make a pilot hole, and then follow thru with a 4" inch hole saw?
You can buy regular twist drills in long lengths. I'd buy one long enough to go through your stud wall, inside to outside. Also use same size or smaller, as pilot bit on hole saw

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