Description

NORTON JUM4 SHARPENING STONE

The NORTON JUM4 SHARPENING STONE in Crystolon on both sides. Large dimension – 11½ “x 2½” x 1 “; Rough / fine oil stone; recommended for use on hard metals such as 64hrc. Rough: Crystolon – grain 100, 141 micron Fine: Crystolon – grain 240, 53 micron It will degrade faster but will cut metal more aggressively.

NORTON JUM4 stone, same as JUM3 but with these specs: 12 x 2-1/2 x 1-1/2 Coarse/Fine

Lastly check out all our Sharpening Stones here.

Brand

Norton

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