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Model # 10-42

Internet # 100113833

Jamb Saw Replacement Blade for Roberts 10-40

This item has been discontinued.
The Home Depot no longer carries this specific product.

$16.00 /each




Model # 10-42

Internet # 100113833

Store SO SKU # 312924

The Roberts 10-42 is a 4.25 in. replacement blade for the Roberts 10-40 undercut jamb saw, as well as QEP jamb saw model 21600. The blade is engineered with carbide tips for durable performance. Designed for wood trim door jambs and base boards.

  • Designed for wood trim door jambs and base boards
  • Materials cut include wood, plastic and soft aluminum
  • 4.25 in. diameter with 20 extra fine teeth for a smooth cut
  • Long lasting carbide tips

Info & Guides

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Blade thickness (in.) 
Product Width (in.) 
Saw blade diameter (in.) 
Dry/wet use 
Flooring Product Type 
Tile Tool 
Material Cut 
Product Weight (lb.) 
0.3 lb 
Saw Blade Material 
Tile Tool Type 
Replacement Blades 
Warranty / Certifications
Manufacturer Warranty 
To be free from manufacturing defects 


Rated 5.0 out of 5 by 5 reviewers.
Rated 5.0 out of 5.0 by Roberts jamb saw blade. The shipping to home depot was fast and the blade cut clean and very smooth. August 25, 2015
Rated 5.0 out of 5.0 by Grat Customer Service The saw blade is of high quality carbide steel. Works great for saving time cutting door jambs. When I ask Home depot if they carried blades for Jamb saws. they knew just what I was talking about and order it for me. In just a few days that had it for me. Thanks July 30, 2014
Rated 5.0 out of 5.0 by As expected. Good price and quality. Great product and delivery was earlier than promised. April 9, 2013
Rated 5.0 out of 5.0 by " Solid blade " Good blade for undercutting door jambs in a variety of flooring installations. Blade cuts quickly without tearing wood. I have used the Roberts undercut saw for quite a few years and found no reason to upgrade to a higher priced 6" model. The saw and blade meet every need for professional installations. December 29, 2007
Rated 5.0 out of 5.0 by Jamb saw blade I previously had a Roberts jamb saw blade and really put through the test of many jobs. The blade provides a good clean cut. It is long lasting cutting through various types of wood without any burning or splintering of material. A product I will continue to use years to come. October 31, 2009
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