The Hurricane Dry/Wet Core Bit is a high performing dry core drill bit in an economy package

sanding of stone with diamond cup wheels and core drilling with diamond core drill in wet condition

Available in two versions: "black" for dark stone and "white" for light stone

Waterproof Silicone Carbide Abrasive Paper (Latex Impregnated) officially known as

Miracle Sealants 511 Impregnator reinforcement The Hurricane Dry/Wet Core Bit511 Impregnator is the original penetrating sealer designed for the protection of all medium to dense porous surfaces. 511 Impregnator forms an invisible barrier that is resistant to moisture and stains while allowing vapor to escape. 511 Impregnator is not a surface coating and will not alter the natural look.