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Canadian Knifemaker Supply Ltd.
2728 Hwy 95, Brisco, BC
V0A 1B0
HOW TO CHOOSE A KILN - BY PARAGON
Over the years, the selection of kilns has grown steadily. To help you sort through the confusion of choosing from so many different types, Paragon has narrowed the selection criteria to eight: Temperature, Size, Electrical, Round or Square, Top or Front Loading, Firebrick or Ceramic Fibre, Insulating Firebrick Wall Thickness, Manual or Automatic. Each of these criteria is discussed below.
How to Heat Treat CPM M4
CPM M4 is popular in competition cutting blades as it is high-speed steel exhibiting better grit and wear resistance than M2 or M3 in cold work punches, die inserts and cutting applications.
While it may chew up belts grinding it after hardening, its exceptional edge retention and strength make it impossible to ignore and worth the inconvenience. If you are used to hard-to-grind and polish steels, you will be prepared to work with M4.