Metal Dental Milling Burs

Metal Milling Burs (CoCr, Titanium, Hybrid)

Cutting cobalt-chromium and titanium on a dental mill is the most demanding workflow in the lab. Cycle times are long, feed and speed windows are narrow, and the wrong tool geometry produces built-up edge, chipping or galling rather than a clean margin. The burs in this category are selected for dental CoCr and Ti-6Al-4V grade alloys specifically. They are not general industrial steel-cutting tools and we do not recommend them for non-dental metalwork.

Where these burs are used

• CoCr full-cast frameworks, model-cast partials, PFM copings
• Titanium implant bars, custom abutments, screw-retained bridges
• Hybrid restorations where a metal substructure is later veneered
• Heavy-metal workflows on machines such as Zirkonzahn M1/M2 Wet Heavy Metal, M4 Wet Heavy Metal and M5 Heavy Metal

Tool selection notes

For CoCr, we default to a 4-flute micro-grain carbide with AlTiN or TiSiN PVD coating. For titanium, 3-flute with polished rake faces reduces chip welding. Coolant flow and spindle run-out matter more than bur brand - a premium bur in a machine with 15 um TIR will underperform an adequate bur in a tight spindle. Measure run-out before blaming the tool.

Compatibility

This category covers dental metal milling burs compatible with Zirkonzahn M-series heavy-metal machines, Amann Girrbach Ceramill Motion 3, Ivoclar PM7, Arum 5X-500L and similar wet dental mills rated for metal. Shank diameters vary by machine - common dental shanks are 3 mm for Zirkonzahn and Ivoclar, 4 mm for most Roland and XTCERA models, 6 mm for larger Arum and older Aidite spindles. Confirm the shank on your machine before ordering. CADBURS is not affiliated with any of the machine manufacturers listed; all trademarks belong to their respective owners.