QEP Dual Grit Sanding & Rubbing Stone 150 x 50 x 25mm Black SKU: 446863 MODEL: 10022 Error. try again later You've successfully joined the club $ 25 .76 each Available on orders $50 to $1500.More info × Mitre 10 SAvailable at selected stores. Check your local store for details Variants The Rubbing Stone is perfect for smoothing rough edges on freshly cut ceramic, porcelain, stone, marble and brick. Features and benefits Dual grit surfaces: Medium 60-Grit and Fine 80-Grit. Great for sharpening/dressing dull diamond blades.