Fit for all 15mm woodturning lathe tools are to produce an edge sharper than steel , scrape faster and cleaner than steel , safe and easy storage Fit for woodworking cutter heads / journal heads , extremely hard and , hold its edge up to 50times longer than standard , and to a finish for smoother cutting and longer tool life for woodworking helical planer cutter heads , or woodturning lathe heads tools, Manufacturer: Watreketal