NORTON IM2 SHARPENING STONE -India

Norton IM2 SHARPENING STONE is a Combination Bench Stone:

These two-sided stones feature a Coarse India side for establishing an edge and a Fine India side for refining the edge.

The stones are a full 1″ thick. giant bench stone – 11½” x 2½” x 1″; coarse/fine stone; Best for finishing. a staple go to sharpening stone for skaters both short and long track speed skaters.

The India Combination Coarse and fine grit made up of aluminum oxide abrasive surfaces produce an amazing strong, keen, long-lasting edges on quality Speed skate blades and tools. Orange/brown in color.

Coarse India – 150 grit – 93 microns

Fine India – 280 grit – 43 microns

In addition this stone should be used with OIL.

Finally you can find all our Sharpening Stone Here.

What Grit is a Norton Fine, Medium and Coarse?

Name: NORTON IM2 SHARPENING STONE for Speed Skates - Zt Sports
Price: 89.99 CAD
Availability: InStock

Norton makes a number of stones in a Fine, Medium and Coarse grit. But those grits are seldom stated in terms of the actual grit.

Based on our experience and referencing their documentation, we have determined the grits. Interestingly, Norton produces different grits for their Norton India Stones (an aluminum oxide stone) and their Norton Crystolon Stones (a silicon carbide stone).

While there is no one standard in use for grits, we generally use the standard most commonly associated with waterstones (JIS).

Why do we do this?

For a few reason actually.

First, on the lower grits, it fairly closely follows the USA standard (CAMI) for coated abrasives (sandpaper) and the European standard (FEPA).

Second, the waterstone standard has a very wide range that starts very coarse and finishing extremely fine. The CAMI and FEPA standards stop where the waterstone grits keep going finer.

This allows us to use one standard across different stones. Lastly, the micron measurement allows for excellent on relative particle size comparison, so from that perspective, that is a great way to measure grit.

However, if you’re not familiar with that measurement, the numbers are somewhat hard to interpret. For example, a 45 micron particle size is hard to imagine, but if we said it was roughly a 325 grit, you gain some perspective.