DMT 95-Micron 10" x 4" Dia-Flat Flattening Plate

It flattens sharpening stones that have worn hollow with use. A flat stone is essential because high and low spots on the stone transfer directly to your blade as a concave edge. See our sharpening collection.

It's certified flat to +/-0.0005", an exceptional degree of precision that ensures your stones, and therefore your blades, come out truly flat.

The aggressive 95-micron surface flattens waterstones, Arkansas stones, and other conventional stones quickly and effectively. Browse our waterstones and diamond and water stones.

Micron rating describes the diamond particle size. At 95 microns, this plate is coarse, which makes it fast and aggressive at removing material to renew a worn stone surface while still leaving a clean finish.

It measures 10" x 4" x 0.375" (254mm x 102mm x 10mm), a generous surface that flattens most bench stones efficiently.

Keep both the plate and stone wet, then rub the stone across the plate, checking your progress as you go until the surface is uniform. To clean, use a soft brass brush and rinse the debris away.

It contains more than 30 carats of industrial diamond bonded with DMT's Diamond Hardcoat Technology, which also lets you flatten with less pressure for faster, easier results.

It's made in the USA by DMT, a trusted manufacturer of diamond sharpening products used by professionals worldwide.

Stones wear unevenly during sharpening, developing hollows in the most-used areas. Those hollows produce rounded or concave bevels on chisels and plane irons, so regular flattening keeps your edges accurate.

Diamond plates generally stay flat and don't require flattening; this plate is intended for conventional, Arkansas, and water stones. For diamond options, see our diamond and water stones.