Radius Ring
Tried-and-true, the original skate sharpening hollow profile still used today by the majority of professional and amateur hockey players around the world.
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SPARX RADIUS VS FIRE RINGS
Choosing your grinding ring

SPARX SHARPENING VS. TRADITIONAL SHARPENING
Frequently asked questions
How long does a Grinding Ring last?
How does the Grinding Ring know when it's out of sharpenings?
Do you offer a Flat Bottom sharpening?
How do I know which Grinding Ring to choose?
What is the difference between a Radius Ring™ and a FIRE Ring™?
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