knowledge: 1. When grinding abrasive in the smear light mineral oil (for example, sewing machine oil, motorcycle oil, gasoline volatile, too thick are not suitable for lipid) or water, cooling effect, so as to avoid the knife blade annealing; 2. When grinding, as a result of the friction metal parts and sand can cause sand fall off, also known as the greasy, don’t try so hard to remember that grinding surface deposition of greasy, silting in the grinding process is help to kaifeng. All finished grinding, with water washing hurriedly, oil stone surface it dry storage. Especially declare: Sharpening stone for high temperature welding, high hardness, brittle material, edges and edge surface in bulk logistics, storage, transport or express hard to avoid can have knock against fall in the mouth, sand fall off.

Product Features

• It’s for grinding punch, skiving knife or grinding leather edges.
• Length: 6″ see picture 2
• 3 stlye as picture show