A medium #120 grit linoleum knife stone without a handle, that is preferred by some installers. Size is 1-1/4" wide x 10" long x 3/4" thick.

This medium #120 grit stone is especially designed for linoleum knife sharpening. Has a permanently attached comfortable wood handle. Stone size is 1-1/4" wide x 10" long x 3/4" thick and overall length is 14-1/2".

This is a double grit stone having the fast cutting #120 medium grit on one side, and the #240 fine grit on the other side for razor edge sharpening. Otherwise, it has the same features and dimensions as the No. JT920.