Description

NORTON JUM4 SHARPENING STONE

Norton JUM4

• Crystolon Combination Coarse and fine grit sharp-cutting silicon carbide abrasive surfaces for general sharpening (to moderate tolerances) when the speed of sharpening is more important than the fineness of the cutting edges. Gray in color.

12″x2.5″x1.5″

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, is the 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.