Description

NORTON JUM3 SHARPENING STONE 
made from CRYSTOLON the NORTON JUM3 SHARPENING STONE is a combination  oil Stone. 
Recommended for use on harder metals like High Speed Steel; tends to cut more aggressively than the Foss or the Norton IM2
but at the same time will wear more quickly.
Coarse CRYSTOLON-100 grit–41 microns
Fine CRYSTOLON–240 grit–53 microns
25x7.5x2.5cm (10x3x1 inch)

Lastly you can find all our sharpening stone here https://ztsports.com/product-category/sharpening/stones/

sizechest(in.)waist(in.)hips(in.)
XS34-3627-2934.5-36.5
S36-3829-3136.5-38.5
M38-4031-3338.5-40.5
L40-4233-3640.5-43.5
XL42-4536-4043.5-47.5
XXL45-4840-4447.5-51.5

Brand

Norton

Norton line of sharpening stones provide top-flight performance and optimum edges to speed skate  blades a quality sharpening product.