OBM Surface Grinder Attachment Product Review. In this video we demonstrate how the OBM Origin Blade Maker Surface Grinder attachment is set up and functions. This sturdy well built unit is perfect for surface grinding knife blanks prior to bevel grinding and again after heat treating to confirm flatness. The attachment can also be used with finer grit belts for polishing knife blanks.
When making knives its important to make sure the blade blank is completely flat on both sides. This is usually done prior to grinding the bevels and again after heat treating. The process can also be used with finer grit sanding belts to polish or flat sand the blade
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