The Sparx SAMURAI 4mm Skate Steel Guide allows you to safely and accurately deburr 4mm skate steel using the Sparx SAMURAI.  Simply pop out the 3MM guide included with your Sparx SAMURAI and easily snap in the 4MM guide.

The 4MM steel guide ensures proper alignment and stability so you can achieve clean, professional-level results every time.

While most current steel runners are 3MM, several goalie skates and figure skates utilize 4MM steel runners.