This High Speed Steel Cylinder Bur #30 (8mm diameter) with a 3/32" shank is expertly crafted from premium M2 High Speed Steel, providing exceptional durability and performance for demanding jewelry making, metalworking, and wax carving tasks. The precision spiral-cut flutes ensure efficient material removal, maintain a sharp cutting edge, and minimize loading, offering superior longevity compared to tungsten, vanadium, or carbon steel burs.

Acting like a miniature file, this versatile 8mm cylinder bur allows for rapid material removal and precise shaping of various materials. Its larger diameter makes it particularly effective for enlarging ring shanks, refining larger details, and working with wax models for casting. The industry-standard 3/32" (2.35mm) shank ensures compatibility with most flex shaft handpieces, rotary tools, and micro motors used by jewelers, metalworkers, and hobbyists.

Key Features:

• Premium M2 High Speed Steel construction for extended tool life.


• Precision spiral-cut flutes for efficient cutting and minimal loading.


• 8mm diameter (#30) ideal for larger-scale work and detailed shaping.


• Standard 3/32" (2.35mm) shank compatible with most rotary tools.


• Suitable for jewelry making, metalworking, wax carving, and other precision tasks.