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Model#: PWMN1791091

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Brand new items;Full manufacturer warranty available
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Powermatic 1791091 1/4 in. Mortise Chisel and Bit

  • Powermatic 1791091 1/4 in. Mortise Chisel and Bit
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These premium hollow chisel and bit sets are machined from solid bars of the finest carbon steel. They have one cutting edge, one spur and a brad point for superior performance, making consistently clean and truly square cuts
  • Ground and hardened carbon steel for efficient performance and long life
  • Extra long bits for compatibility with different mortisers
  • Makes consistently clean cuts with smooth side walls
  • 1/4 in. Mortise Chisel and Bit - 1791091



4.7 / 5.0
6 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Yes, I would recommend this to a friend (4)
Easy To Use (3)
Looks great but doesn't fit my machine!
It cost me about $18 to find out that this mortising chisel did not fit my new Delta machine. Nowhere did I find a shank size in the description of the chisel or in the decription of the machine
January 31, 2013
Yes, I would recommend this to a friend
Easy To Use
i would buy another bit from this compan
tool does what I bought it for
November 13, 2013
Yes, I would recommend this to a friend
Easy To Use
Powermatic Mortise Chisel
I bought an expensive set of mortise chisels but the 5/8" shank would not fit in the Powermatic 5/8" bushing, so I bought a Powermatic mortise chisel. The first surprise I got was the Powermatic mortise chisel has a 3/4" shank which is bigger, beefier and more stable. The shank fits into the 3/4" bushing perfectly. It slides in easily but is very tight with no play or slack, so no run out. This results in a much better mortise with tighter fitting tenons. The auger is excellent and the stem long, which is perfect for easy use. The steel is hardened and I expect the edge on the mortise chisel will last a long time. Overall I am very satisfied with the quality, 3/4" shank, and long stem on the auger. I contacted my local machine shop and they suggested turning the 5/8" shanks with an emery cloth, which might work perfectly, however, I am going to buy Powermatic mortise chisels from now on for my Powermatic mortiser so I can avoid an unnecessary trip to the local machine shop.
April 3, 2014
Yes, I would recommend this to a friend
Easy To Use
A Real Tool that will meet your needs.
When you open the box and hold this tool in your hand you know immediately you have purchased a quality product.
This is what tooling should look, feel and operate like.
Going to buy more!
February 22, 2015
Great chisel that works very well in my PM mortiser.

February 26, 2017
Originally posted at
Yes, I would recommend this to a friend
good chisel
I needed one quick to finish a job (my porter-cable broke after 10 years) i purchased one (not the cheapest) lasted 10 minutes. ordered a porter-cable through cpo, great service , fast shipping and good product.
June 20, 2014

Questions & Answers

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Browse 3 questions Browse 3 questions and 5 answers
Can you only buy the bit?

Xavier on Mar 27, 2014
BEST ANSWER: No, this is sold as the mortise chisel and bit only.
what is length of bit?
Brad on Mar 25, 2013
BEST ANSWER: The length of the bit is 2" from the tip to the shaft. The overall length is 8 inches.
What is the size(Dia) of the shank on the chisel? Does it fit Delta drill press mortiser? My Delta is 5/8" Dia shank.
Jack on Nov 11, 2014
BEST ANSWER: The shank size is a 1/2". It will not fit onto a Delta mortiser with a 5/8" shank.