The 220/400 Sharpening Puck was purpose built to bring well worn bits and blades back to life. Each stone is made from evenly graded Aluminium Oxide granules, which allows the stone to cut faster and does not require oil to be added to the sharpening process.
The 220 grit removes steel in a controlled manner for repairing small chips and minor blade damage, while the 400 side refines the blade for additional sharpening, or restoring a dull blade to a razor's edge.
Included with each sharpening stone is an American made EDPM (Ethylene Propylene Diene Monomer) rubber band, which provides additional grip when manipulating the stone. The band is removable and can be used for a variety of outdoor or everyday carry applications. While gloves are highly recommended, the recessed finger grooves and band combination will keep your hand positioned well above the cutting plane for a secure grip throughout the sharpening process.
Please Note: Each stone is set and cut by hand. Some variation in size and color may occur. This will not affect the performance of the stone.