Edgecraft Chef's Choice 470 - Manual (Page 3)

Description of SteelPro ®
The SteelPro ® is designed to be used either right or left handed (Figure 1 and 2).
The soft-touch handle is shaped and sized for a comfortable hold. The SteelPro ®
can be hung by the metal ring attached to the handle or stored flat in a drawer
or on a shelf.
The SteelPro
® contains two unique rods made of a special high carbon steel
hardened to about Rockwell C-65, which is much harder than any commercially
available cutlery. Consequently these special rods will show very little wear from
the repeated contact with the edge of your finest and hardest knives.
Two precision knife guides, with planes set at about 23 degrees to the vertical
center line of the hardened rods, control and precisely align the face of the knife
as the balde is inserted into the slot between the guide and the blade retention
spring. In use, the blade is inserted alternately into the left and then the right
slots and pulled forward so that the knife edge slides along the surface of the
hardened steel rod.
The steel rods are supported by elastomeric materials that allow the rods to
deflect when excessive force is applied to the blade. This feature and the ultra-
precise and consistent angular contact maintained stroke after stroke between
the knife edge and the hardened steel rods are key to optimizing the edge
structure. Viewed under a microscope, the SteelPro ® edge presents a uniform
formation of exceedingly fine and super-sharp micro-serrations. Furthermore,
even after many uses of the SteelPro ® on a knife, the original edge geometry is
maintained and the edge does not round-off like it would using a conventional
steel with no angle control.
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Figure 1. Right-handed use. FIgure 2. Left-handed use.