Information The Shapton RockStar fine sharpening stone, featuring 4000 grit and a 3-micron grain size, is part of the Shapton RockStar series. Made from high-grade white aluminium oxide, a tough synthetic ceramic material, these stones are precisely engineered for consistent grain size, delivering reliable sharpening results. A 4000-grit stone is an excellent finishing step for sharpening kitchen knives, making it unnecessary to use a higher grit stone. Specifications:- Material:- White aluminium oxide Grit:- 4000 Grit Size Micron:- 3 Micron Dimensions:- 21cm x 7cm x 1cm Weight:- 300g Made in Japan
