Diamond paddles are perfect for touch-up honing of router bits, shaper cutters and drilling tools. Their light weight, small size and thin profile make them handy for jobs where bigger stones are hard to handle or just won't fit. Diamond-coated surface is 3/4" x 2" on a 6" plastic handle. Fine is 600 grit. While the paddle may be used dry, wetting the abrasive with water or other liquid will reduce loading while you work.