0045242198566

Milwaukee

Model # 49-56-9645

Internet # 202327761

Store SKU # 231194

4 in. Bi-Metal Hole Saw

$19.97 /each
  • Plug jack increases productivity
  • Longer teeth life
  • Durable in tough applications

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

You will need Adobe® Acrobat® Reader to view PDF documents.  Download a free copy from the Adobe Web site.

Specifications

Dimensions

Bit Diameter 
4 in 
Bit Length (in.) 
1.625 
Drilling Depth (in) 
1.8 
Hole Saw Diameter (in) 
4" 
Shank Diameter 
3/8 in 

Details

Arbor included 
No 
Bit Material 
Bi-Metal 
Drill Bit Type 
Hole Saw 
Drill Bit Type(s) Included 
Hole Saw 
Individual/Set 
Individual 
Material Cut 
Multi-Purpose 
Min Chuck Size Required 
1/2 In. 
Pilot Bit Included 
No 
Power Tool Product Type 
Drill & Router Bits 
Returnable 
90-Day 
Shank Style 
Hex 
Shank Style 
Hex 
Tools Product Type 
Power Tool 

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Customer Questions & Answers

50 Questions85 Answers

Customer Questions & Answers

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

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This question is from 4 in. Bi-Metal Hole Saw
 
1 answer

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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Answer (1)

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
Asked by
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April 5, 2016
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Answer (1)

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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This question is from 3-1/2 in. Hole Dozer Hole Saw
 
1 answer

This doesn't fit my power drill. What adapter bit do I need to purchase

This question is from 3-1/2 in. Hole Dozer Hole Saw
Asked by
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March 6, 2016
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Answer (1)

Asked by
California
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Home Improvement Profile: Other
March 7, 2016
Answer: 
Hi Geo, here is a list of the Milwaukee quick arbors that work with this hole saw.
Just make sure you match up the arbor that works with your drill chuck size.
For fast, tool-free change-outs, use Milwaukee's universal Quick-Change Arbors. 49-56-7210, 49-56-7240, 49-56-7250 and 49-56-9100.
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Customer Reviews

Rated 4.1 out of 5 by 199 reviewers.
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 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
Rated 3.0 out of 5.0 by Decent product This hole saw does a good job on drywall and plywood, but it is not durable enough to cut through cement board. Decent light duty tool- but look elsewhere if you want one that lasts. June 23, 2016
Rated 5.0 out of 5.0 by Good quality! Milwaukee keeps making long lasting tools for the casual or everyday user. March 29, 2016
Rated 1.0 out of 5.0 by No good after cutting 1 hole Used to make hole for 1 Dryer vent and 1 Bathroom exhaust vent. First hole no problem second hole blade was dull. I used on hardiplank then plywood. March 22, 2016
Rated 4.0 out of 5.0 by Great Hole saw The hole saw cut through my sheet metal to make a nice size electrical light fixture hole for my night light on my work shop. What a great saw March 15, 2016
Rated 1.0 out of 5.0 by WORTHLESS I have burned through 5 of these trying to make 3" can holes bigger to accept a 4 in retro fit LED. No room to install new can. makes 1 cut in the 20 gage sheet metal of the old can housing and your done. Chuck it and buy a new one. 55 of these to do would be nice to get more than one hole out of it. February 9, 2016
  • 2016-07-24 T19:38:20.706-05:00
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