Norton 4 x 1 Round Combination Crystolon Stone ORMD the La Lune is similar

the La Lune is similar in grit to the Pierka

Synthetic stones are man-made by forming small bits of abrasive material into brick form using a resin or ceramic binder

Model 327 General Scissors Sharpening Instructional DVD gives you all the details

The stone holder also has an integrated handle on the bottom

If you are on the Quest For the Ultimate Edge

Norton 4 x 1 Round Combination Crystolon Stone ORMD the La Lune is similarThis is a 4" round combination Crystolon, or silicon carbide, stone with both coarse and fine sides. The coarse side is very aggressive and is used for bringing dull edges back to sharpness. The fine side is used to restore edges that are slightly dull, and for refining the edge left by the coarse side. This stone is similar to, but a bit more aggressive than the harder Norton 4 x 1 Round Combination India Stone. Norton Item Number: JB64 Norton Part