How many sharpenings do each Grinding Ring provide?
On average you’ll get 50-60 sharpenings (or even more!) per ring (Radius Ring or FIRE Ring).
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GRINDING RING
Grinding Ring Scanner
To access the Grinding Ring scanner, please open the Sparx Hockey app and click on the icon highlighted highlighted below. Then, hold the Grinding Ring to the back of your phone to scan the Grinding Ring and view the remaining life.
FBV to FIRE
You can learn more about the science behind flat-bottom radius cuts in this video with our CEO, Russ.
How do Sparx ring sizes compare in mm?
Sparx Grinding Ring mm. 5/16", 7.9. 3/8", 9.5. 7/16", 11.1. 1/2", 12.7. 9/16", 14.3. 5/8", 15.9. 11/16", 17.5. 3/4", 19.1. 7/8", 22.2. 1", 25.4. 1 1/8", 28.6. 1 1/4", 31.8
Can I create my own Starter Pack of Grinding Rings?
At this time, we only offer the Starter Pack as a pre-packed bundle that includes a 1/2", 5/8" and a 1/2" FIRE. These three grinding rings represent our three most popular hollows and are not interchangeable for the same discounted price.
Does your FIRE ring have flat inside edges or curved?
Curved. The inside edge of our FIRE rings is cut on a radius. Skate steel is very rarely perfectly straight, and with a flat inside edge you will very quickly lose the ability to sharpen the section of bent steel. The radius inside edge of our FIRE r
Flat Ring
The Sparx Flat Grinding Ring is designed to help you remove the existing hollow in your skate blade, making it easier to set a new hollow. The ring’s specially formulated coarse abrasive allows for quick removal of skate blade damage, such as deep ga