I ordered some cutters from KV woodworking supplies last summer, they carried Dem-Bart.
https://kvwoodcarvingsupplies.com/
A set of cutters for sale on alberta outdoorsmen now
I looked them up and yikes 24 to 39 dollars US for a heat treated hand cutter ,not carbide only the power cutters are carbide.
Brownells Inc stock Dembart cutters... I have never had a Canadian supplier for Dembart in 50 years.
I much prefer the 90 degree cutters over the 60 degree cutters...
I ordered some cutters from KV woodworking supplies last summer, they carried Dem-Bart.
https://kvwoodcarvingsupplies.com/