Naniwa Prostone Coarse Sharpening #150 QA-0100

Product size (approx.): 25mm (height) x 70mm (width) x 210mm (depth) Weight (approx.): 780g Abrasive material: silicon carbide material Particle size: #150 Sharpening stone size: 210 x 70 x 25 mm, with base. [Uses] Sharpening stone for planes and chisels. [Features/Functions] For rough sharpening. [Precautions] Before sharpening, soak the sharpening stone thoroughly in water (for about 5 minutes).