Dmt DMT-W250CXNB Double Sided Diamond Whetstone 250Mm Coarse / Extra Coarse

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 micronBlue: Coarse Grade 325 45 micronRed: Fine Grade 600 25 micronGreen: Extra Fine Grade 1200 9 micronThe Blue side is suitable for general carpentry tools tinsnips side cutters wood bits garden tools etc. The Black is suitable for damaged woodworking tools cold chisels axes lawn edgers etc. Black: Extra Coarse 220g 60 micronBlue: Coarse 325g 45 micronPTDDMTW250CXNB