General description Professional tools for woodworking, this set includes 20 different shapes and sizes of rotary cutters, ideal for model making, engraving, and various other applications. Depending on your work needs, you can select different types of cutting heads to fulfill your specific process requirements. The diamond drill bits feature 10 different grinding heads, making them suitable for engraving, cutting, polishing, chamfering, grooving, reaming, and drilling. Technical specifications Material: HSS (High Speed Steel) Shaft diameter: 3 mm Cutting diameter: 6 mm Total length: 40 mm Net weight: 58 g Contents: 20 rotary cutters Compatibility and accessories 3mm (1/8") rotary tool holder compatible with most electric rotary tools or grinders Suitable for Dremel rotary tools and most other brands of mini grinders and mini drills Usage Ideal for craft projects and DIY creations Convenient for peeling and cutting tasks High work efficiency with good workmanship quality Safe and