These traditional tools have been used for eons in the stone industry and are still among the most cost-effective tools for splitting stone. Also called Wedge and Feathers. These tools are the oldest and still one of the best ways to split stone. Small Wedge and shims in 5/8â?²and 3/4â?² sizes are good for stone yards or stone masons who want to reduce their rocks to workable sizes 1â?²,1-1/4â?²,1-3/8â?² are for splitting large rocks. Our high quality wedge and features are made for splitting granite and other hard stone. Hole diameter design: 14mm to 38mm Length: 125mm to 600mm