Ключевые слова: abrasion, abrasive, belt, bicycle, blade, brick, burr, caution, coupled, dangerous, diy, doublesided, grinder, grinding, grindstone, hand, hazardous, hold, hone, indian, japan, japanese, knife, knifegrinder, man, manual sharpener, mobile, neck, paired, peddle, portable, red, repair, rubber, rubstone, rural business, scissor, sharpening, small business, sparks, steel, striker, tool, twosided, twoway, water stones, wheel, whetstone, whetstones, young,