W10 Double sided (combination) diamond whetstones will not break, chip, crack, hollow or groove. These ultra precision whetstones are lightweight and have a totally rigid construction. Use water for lubrication no oil, smell or mess and can hone ALL hard materials: carbide, steel, the grits are denoted by a dual coloured circle which is set into one end.
Black: Extra Coarse Grade 220, 60 micron
Blue: Coarse Grade 325, 45 micron
Red: Fine Grade 600, 25 micron
Green: Extra Fine Grade 1200, 9 micron
The Green side is suitable for Finest quality knives, Woodworking tool refinement, T/C tooling refinement etc.
The Blue side is suitable for general carpentry, tin snips, augers, wood flat bits, garden edge tools, fish hooks, darts etc.
Blue: Coarse 325g, 45 micron
Green: Extra Fine 1200g, 9 micron