Type - Planer Stone
Length - 4"
Width - 3/4"
Thickness - 5/16"
Grit - 80
Color - White
Hardness - J

Metric size fine grit, soft stones are for Weinig, Wadkin, & Leadermac moulders. Coarser, Hard stones are for Mattison, Diehl, Tri-State, and other American moulders. Fine grit stones offer a smoother finish while coarse grit stones wear longer and are aggressive.