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Rob Cosman's IBC Mortise Chisel: 1/4 inch

Original price $197.00 - Original price $197.00
Original price
$197.00 - $197.00
Current price $197.00
in stock, ready to be shipped
Full Description
Customer Reviews

Determined to design a better mortise chisel, IBC and I teamed up and developed what I consider to be the best woodworking mortise chisel on the market today.  These chisels meet all five criteria of a great mortise chisel: comfortable, high quality steel, sides square to the back (+/- .002 of an inch accuracy), flat back, and the ability to change handles.

Product Details:

  • Size:  Mortise chisel handle length: 3.87 inches. Mortise chisel total length: approximately 9 inches. Mortise chisel blade length, including the tang is approximately 6 inches. Blade width: 1/4 inch, blade height: 3/8 inch. 
  • Handle: Cherry handle is turned precisely on a lathe so they fit nicely to the ferrule and end cap and have a butter smooth surface.  Shaped for a comfortable grip in the hand, they are finished with four coats of tung oil.

  • Steel:  Made from AISI High Vanadium A2 tool steel which holds an edge beautiful.  Fully stress relieved, triple tempered, cryogenically treated and hardened to 60-62 HRC.  Primary bevel is ground to 30°. 

  • Flat Back.  Each chisel is tested on a granite reference surface to ensure the back is flat to within .0005 of an inch.

  • Design: The blade tang extends through a hardened steel ferrule and into a threaded hardened steel core that is inserted through the center of the wood handle and is securely attached to an aluminum striking cap.  This design allows you to easily replace the standard cherry handle with your own custom turned wood handle. 

  • Made in Canada

Customer Reviews

Based on 25 reviews
Tom Kovacic
mortise chisel

excellent service, love the chisel, fast shipping. Rob Cosman actually called me on the phone phone and left a voice, I thought that was very nice. going to order a different size chisel. Very good service and product.

Robert Hayward
1/4 inch mortise chisel

Another excellent mortise chisel that feels good in my hand.

Philip Ivory
Mortise chisel

Great tool! Very pleased with this purchase.


It is very precise and robust. It is well made and I am happy with it.

Fred Parks
Awesome tool well designed and excellent steel

Couldn’t have made a better one myself