The High Speed Steel Bur – Size 8 (2.3 mm) Inverted Cone is a precision cutting tool designed for jewelers, engravers, craftsmen, and professionals who need accurate shaping and clean finishing in tight or detailed areas. Manufactured from premium High Speed Steel (HSS), this bur offers superior durability and consistent sharpness during extended high-speed use.

The inverted cone shape is ideal for creating clean undercuts, carving grooves, refining prongs, shaping metal, and detailed engraving. The 2.3 mm head size (Size 8) provides excellent control, making it perfect for intricate jewelry work or detailed carving in metals and other hard materials.

With a 3/32" shank, this bur fits all standard rotary handpieces, flex-shaft tools, and micromotors used in jewelry workshops and craft studios. Its smooth cutting action reduces chatter, giving you clean, professional results.

The high-speed steel composition ensures long service life, maintaining edge strength under friction and heat. Whether you are shaping metal, carving wax, engraving patterns, or removing imperfections, this Size 8 inverted cone bur delivers reliable, high-quality performance.

Key Benefits

• High-speed steel offers extended tool life

• 2.3 mm head (Size 8) delivers precise control for fine detailing

• Inverted cone geometry ideal for carving, undercutting & shaping

• Compatible with all 3/32" rotary tools

• Smooth cutting performance with minimal vibration

• Works on metal, wood, plastic, stone, and wax

• Perfect for engraving, jewelry work, carving, and finishing