Dual-grit waterstone sets have a different grit on each side of the stone. Having different grits on the same stone makes it easier to transition from one grit to the next and reduces the space required to store multiple stones. Waterstones (sometimes called whetstones) are soaked in water before they can be used for sharpening and to prevent cracking. They sharpen quicker than oilstones and require less overall maintenance.

Single-grit waterstone sets include waterstones with a selection of grits or materials. Single-grit waterstones are used when the same process is regularly performed. Waterstones (sometimes called whetstones) are soaked in water before they can be used for sharpening and to prevent cracking. They sharpen quicker than oilstones and require less overall maintenance.

Single-grit diamond sharpener sets are used when the same process is regularly performed. These stones can be placed on a flat surface (such a table or workbench) or held in the hand.