ITEM NAME:10x Diamond Cutting Disc Saw Blade Grinding Wheel Set Rotary Tool Circular Descriptio n Feature: Brand new and high quality. Made from strong carbon steel, durable and firm. Ideal for cutting hard materials like wood, plastics, laminates , aluminium, various metals ,precious stones, jade ,etc Suitable for use in carpentry and crafts. Material:diamond,carbon steel Disc Size:20mm Thickness: 0.6mm Hole diameter: 3mm Color:Silver Notes:It is manual measurement, there may be 2-3mm error. And item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. hope understand. Package included: 10x Diamond Cutting Discs 2x Mandrels Whatever the ending's perfect or not, you can't disappear from my world 10pcs 20mm Mini Diamond Saw Blade Cutting Discs for Drill Rotary Tool.10pcs 20mm Mini Diamond Saw Blade Cutting Discs for Drill Rotary Tool. 10x Diamond Cutting Discs. We'd like to settle any problem in a friendly manner. Material:diamond,carbon steel. Disc Size:20mm. hope understand.