Double-Sided Ultra-Fine Knife Sharpener Oilstone for Household Kitchen, Durable Sharpening Stone for Scissors, Chef Knives, Cutlery & Tools, Compact Knife Grinder for Smooth Precision Edge, Easy to Use & Long-Lasting Performance

Choose a stone with two grits (coarser side for initial sharpening; finer side for finishing). This saves you time and gives flexibility. knifesharpening.sg+1

Pay attention to grit numbers: For most home kitchen knives you might use a medium grit (≈ 1000) for maintenance, and a fine grit (2000+) for polishing. knivesandtools.com+1

Decide between oil stone vs water stone vs diamond stone: Oil stones (which require light oil) are durable and good for slower, precise work; water stones act faster but require soaking and flattening. Glamorwood+1

Ensure the stone is the right size, shape and material for your knives: Larger blades need more length; stable base helps. global.ichimonji.co.jp

Also consider maintenance: stones must be cleaned/flattened to remain effective. knifesharpening.sg

Sharp knives are safer: a dull blade is more likely to slip. Sharpener quality matters.