GRINDING STONE. Conical stones are the lightest weight stones used in 2L grinders; Efficient grinding; Stones last even after 20 years of use, Ideal for preparing ultra soft Idlies, ultra Crispy Dosas, Crunchy Vadas, Chutneys, Masalas, Gravies and much more. Use it for other specialty foods such as Masa for corn tortillas, Puto etc. Specifications