Model # 49-56-9645

Internet #202327761

Store SKU #231194

Milwaukee 4 in. Bi-Metal Hole Saw
0045242198566

Milwaukee

4 in. Bi-Metal Hole Saw

  • Rip Guard, the strongest tooth form in the industry
  • 8% cobalt construction for increased wear resistance
  • Plug Jack, an all access slot design for fast plug removal
$19.97 /each

Frequently Bought Together

Product Overview

Use the Milwaukee 4 in. Bi-Metal Hole Saw to cut holes in a variety of materials. The steel hole saw can drill almost 2 in. D. Milwaukee Ice Hardened products utilize a proprietary cryogenic hardening process that improves upon traditional heat treat processes. Unlike surface coatings that wear away, cryogenics harden to the core by minimizing soft metal (austenite) and creating more hard metal (Marten site). The result is a product that is more consistently hard throughout, resulting in life up to 50% longer than the competition.

  • 1/2 in. chuck size
  • High-speed steel construction
  • 4 in. Dia
  • 1-51/64 in. drilling depth

Info & Guides

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Customer Questions & Answers

55 Questions111 Answers

Customer Questions & Answers

4 in. Bi-Metal Hole Saw
4 in. Bi-Metal Hole Saw

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This question is from 6 in. Hole Dozer Hole Saw
 
2 answers

can i use this on metal hvac duct

This question is from 6 in. Hole Dozer Hole Saw
Asked by
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May 2, 2016
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May 3, 2016
Answer: 
Yes, this hole saw is made for cutting metal.
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May 3, 2016
Answer: 
Yes. You can use this saw on Metal HVAC duct.
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This question is from 4 in. Bi-Metal Hole Saw
 
2 answers

Cutting thru Clear Extruded Acrylic Plexiglass Sheet

This question is from 4 in. Bi-Metal Hole Saw
Asked by
Lake Orion, MI
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February 28, 2016
Can I use this hole saw in drill press to cut thru Clear Extruded Acrylic Plexiglass Sheet 3/8 inch thick?
If yes, then what speed is recommended, 600 RPM or lower? Should I use any fluids to reduce generated heat? Thanks, Max
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Asked by
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October 25, 2016
Answer: 
I'm sure that it would , but the plastic might melt on the blade.
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Asked by
Dothan,Al.
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July 15, 2016
Answer: 
Yes it will but take it slow so not to crack the material. Some persons run the drill in reverse after the center bit is through to cut without digging into the material, the more teeth you have on a bit (finer cut blade) is what you need to cut such materials.
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This question is from 4-1/2 in. Hole Dozer Hole Saw
 
1 answer

With enough cutting oil or wax, will this bit cut through 1/2" steel?

This question is from 4-1/2 in. Hole Dozer Hole Saw
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April 5, 2016
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April 21, 2016
Answer: 
Yes, the Hole Dozer can cut through thick steel, even I-beams. For thick steel low RPM with generous cutting fluid/wax is recommended.
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This question is from 4 in. Bi-Metal Hole Saw
 
2 answers

Cut through brick for dryer exhaust?

This question is from 4 in. Bi-Metal Hole Saw
Asked by
chicago
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February 10, 2016
Trying to drill the exhaust hole for the dryer. Can I used this to drill through brick? its an old chicago building?
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Answers (2)

Asked by
Dothan,Al.
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July 15, 2016
Answer: 
It's tough enough to cut through brick, however you will need either a deeper saw depth or go as deep as you can then chisel out center and drill again. It will not get you all the way through the brick in one run.
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April 21, 2016
Answer: 
No. This hole saw cannot cut through brick.
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Customer Reviews

Rated 4.1 out of 5 by 252 reviewers.
Rated 5.0 out of 5.0 by Perfect for the job Cut through my soffit to put a bathroom vent in perfectly October 18, 2016
Rated 5.0 out of 5.0 by better than most whole saws , last longer October 25, 2016
Rated 5.0 out of 5.0 by worked good Cuts well, not much use yet seams like it will last September 13, 2016
Rated 5.0 out of 5.0 by Great Bore I used this to bore holes forinsulation. Make sure to use a drill larger than the standard 3/8! I burned the motor out in mine :( August 16, 2016
Rated 5.0 out of 5.0 by I've completed a lot of projects with it,still going strong Simple to assemble a valued investment. I would use this product again. July 15, 2016
Rated 5.0 out of 5.0 by Milwaukee 4in hole saw It worked very fasted and was cutting through like it was butter. August 9, 2016
Rated 5.0 out of 5.0 by Cut a hole!! Used this only time!! Installed tub, shower walls. Regubd please LOL!! Good tool June 21, 2016
Rated 3.0 out of 5.0 by Metal hole saw The hole saw was easy to use, I love the quality . June 28, 2016
  • 2016-10-30 T22:02:15.557-05:00
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