This Patwari Imported Sheet Scale Set includes 12 premium-quality 12-inch engineering scales with precise dual-side engraved markings. Each scale is crafted to provide accurate measurements with ratios ranging from 1:10, 1:20, 1:30, 1:40, 1:50 to 1:60, making it ideal for survey work, drafting, civil engineering tasks and technical drawing. The clear, deep engravings ensure long-lasting visibility and accuracy even with regular use. Designed for professionals and students, this durable set delivers consistent performance for plotting, map reading, land measurement and engineering calculations. Its lightweight and compact design makes it easy to carry and suitable for classroom, fieldwork or office use.