Naniwa is a renowned Japanese manufacturer of high-quality sharpening stones, catering to both professional and home users. Established in Osaka, Naniwa has over 60 years of experience in producing a wide range of abrasive products, including water stones, diamond tools, and polishing equipment.

Naniwa's sharpening stones are celebrated for their fast-cutting action, consistent grit quality, and smooth sharpening experience. Their extensive lineup includes:

Chosera (Professional) Stones: Known for their hardness, slow wear rate, and excellent feedback, these stones are favored by professionals for their efficiency and durability.

Super Stones: Offering a balance between performance and affordability, Super Stones are ideal for both beginners and seasoned sharpeners.

Diamond Stones: Designed for sharpening the hardest steels, these stones feature a layer of diamond particles bonded to an aluminum block, ensuring minimal wear and ultimate results.

Naniwa's commitment to quality and innovation has made them a top choice for sharpening kitchen knives, woodworking tools, and straight razors.