Glass ceramic burs compatible with Sirona milling machines.
Sirona systems use different bur shank sizes and dimensions across models. Below is the complete bur compatibility table with specifications and usage recommendations — so you can match the right bur to your exact machine.
Data source: Sincen Dental 2025-2026 Product Catalog (Glass Ceramic Bur Specification Sheets)
| Bur Name | Specification |
|---|---|
| Step Bur 12S | TL13.5×M3.5×L38 |
| Step Bur 12 | TL13.5×M3.5×L38 |
| Cylinder Pointed Bur 12S | TL13.5×M3.5×L38 |
| Cylinder Bur 12 EF | TL13.5×M3.5×L38 |
| Cylinder Pointed Bur 12 EF | TL13.5×M3.5×L38 |
| Step Bur 20 | TL21.5×M3.5×L46 |
| Cylinder Pointed Bur 20 | TL21.5×M3.5×L46 |
| Bur Name | Specification |
|---|---|
| inLab MC X5 Diamond 0.6 | φ0.6×TL8×φ3×L34.5 |
| inLab MC X5 Diamond 1.2 | φ1.2×TL14×φ3×L37 |
| inLab MC X5 Diamond 1.4 | φ1.4×TL14×φ3×L35.4 |
| inLab MC X5 Diamond 2.2 | φ2.2×TL17×φ3×L37.4 |
| Bur Name | Specification |
|---|---|
| Cylinder Pointed Bur | TL9×M1.8×L23.5 |
| Step Bur 10 | TL11.5×M1.8×L23.5 |
| Step Bur 12 | TL13×M1.8×L25 |
| Cone Bur 12 | TL10.5×M1.8×L23 |
| Cone Bur 14 | TL13×M1.8×L25 |
| Cylinder Bur 1.6 | TL9×M1.8×L23.5 |
Different materials require specific bur coatings and cutting geometries. Using the wrong bur type on a material causes poor surface finish, shortened tool life, or restoration fit issues.
Use electroplated diamond burs with micro-grain matrix. Coarse grit for roughing, fine grit for finishing. All our glass ceramic burs are optimized for e.max.
Requires special-coated burs to withstand abrasive zircon dust. Engineered to precisely mill enlarged frameworks accommodating the ~25% sintering shrinkage. Contact us for zirconia bur specs for your machine model.
Use resin-specific burs. Diamond burs are not recommended — they clog on soft materials and wear unevenly.
Requires tungsten carbide burs with specialized geometries. Do not use diamond burs on metal.
The CEREC MC XL / MC X / MC use 7 glass ceramic burs on an M3.5 threaded shank: Step Bur 12S, 12, 20 (TL13.5×M3.5×L38 / TL21.5×M3.5×L46), Cylinder Pointed Bur 12S, 12 EF, 20, and Cylinder Bur 12 EF — electroplated diamond, for wet milling of lithium disilicate blocks. Aftermarket replacements from SINCEN Dental cost $5–50 per bur; free samples for dental labs.
No. The CEREC MC XL / MC X / MC set uses an M3.5 threaded shank, while inLab MC X5 burs (Diamond 0.6 / 1.2 / 1.4 / 2.2) use a φ3mm shank. The two sets are not cross-compatible — always order the bur set made for your specific machine model.
No. CEREC 3 uses an M1.8 threaded shank; CEREC MC / MC X / MC XL use M3.5. The thread sizes are different and the burs are not interchangeable.
SINCEN Dental — a manufacturer based in Beijing since 2018 — supplies aftermarket glass ceramic burs for CEREC MC / MC X / MC XL with the same M3.5 threaded shank interface, at $5–50 per bur, free samples for dental labs worldwide ([email protected]).
Sincen offers 7 Sirona-compatible glass ceramic burs tailored for CEREC MC XL / MC X / MC: Step Bur (12S, 12, 20) and Cylinder Pointed Bur (12S, 12 EF, 20) and Cylinder Bur (12 EF). All are engineered with an electroplated diamond micro-grain matrix optimized for high-precision milling of lithium disilicate blocks.
No. These models use different shank dimensions and the burs are not cross-compatible. Always select the correct bur set for each specific machine model.
Our Sirona-compatible burs support: Glass Ceramic — electroplated diamond burs with micro-grain matrix
Zirconia — diamond-coated burs (contact for specs)
Tell us your machine model and the material you mill — we will recommend the exact bur set with specifications and pricing.
* Bur specifications sourced from Sincen Dental official 2025-2026 product catalogs. For the most current data, please contact our sales team.