20mm Flat End Cylinder Sintered Diamond Bur, 5pcs – 6mm Shank for Stone, Glass & Ceramic

The 20mm Flat End Cylinder Sintered Diamond Bur (5-Piece Set) is an industrial-grade precision tool engineered for high-efficiency grinding, slotting, flat surface leveling, and aggressive material removal on ultra-hard materials.

Unlike surface-plated tools, sintered burs feature diamond abrasive particles bonded throughout the entire solid metal matrix. As the tool wears, fresh diamond crystals are continuously exposed, delivering up to 10x longer service life and consistent cutting performance under heavy-duty carving and lapidary conditions.

Key Specifications:

• Head Diameter: 20mm
• Head Shape: Flat End Cylinder (Cylindrical)
• Grit: 46 Grit (Coarse / Fast Stock Removal)
• Shank Diameter: 6mm
• Bond Type: Sintered Metal Matrix
• Quantity: 5-Piece Set
• Recommended Operating Speed: 10,000 – 25,000 RPM (use with water or coolant for maximum tool life)
• Compatible Materials: Lapidary stones, gemstones, granite, marble, industrial ceramics, glass, tungsten carbide, and composite materials

Primary Applications:

• Stone carving, sculpting, and channel slotting
• Glass edging, shaping, and contouring
• Deburring and surface leveling on hard industrial substrates