Cylinder Pointed Bur

Cylinder pointed bur in two versions: 12S and CEREC 3

The cylinder pointed bur is the diamond grinding bur that works alongside the step bur in CEREC-type wet grinding units. Eagle offers it in two versions on this page, so you can reorder just the cylinder pointed bur without buying a full set:

• Cylinder pointed bur 12S - compatible with the CEREC MC XL
• Cylinder pointed bur (CEREC 3 type) - compatible with CEREC 3 and CEREC 3 Compact

Each pack contains 5 cylinder pointed burs of one version. Both are diamond burs for lithium disilicate (such as IPS e.max CAD) and glass ceramic blocks.

Cylinder pointed bur 12S vs CEREC 3 cylinder pointed bur

The two versions are not interchangeable. The CEREC 3 cylinder pointed bur does not fit the MC XL, and the 12S is made for the MC XL only. Pick the version that matches your milling unit.

How to tell which cylinder pointed bur you need

1. Check your milling unit model: MC XL takes the 12S; CEREC 3 and CEREC 3 Compact take the CEREC 3 version.
2. Look at the bur name in your CEREC software tool table. If it says Cylinder pointed bur 12S, choose the 12S.
3. Compare the REF number on your old bur packaging with the REF in the table above.

What the cylinder pointed bur does

Units of this type grind with two burs at the same time. The step bur shapes the inner (fitting) surface, and the cylinder pointed bur shapes the outer and occlusal surface. On the CEREC 3 it sits on the right side, opposite the step bur. On the MC XL, the Cylinder pointed bur 12S works as a pair with the Step bur 12S.

Because the cylinder pointed bur forms the visible outer surface, its condition shows directly in occlusal detail and how much polishing a restoration needs.

When to buy the cylinder pointed bur on its own

The two burs in a pair do not always wear at the same rate. If your step bur still grinds well but the cylinder pointed bur is worn, chipped or broken, replacing only that bur keeps the unit running without opening a full set. If you need both burs, the full sets are on our MC XL milling burs and CEREC 3 milling burs pages.

Signs your cylinder pointed bur is worn

• Rougher occlusal surfaces that need more polishing
• Less crisp fissures and cusps than your design
• Chipping on outer margins of crowns, inlays and veneers
• Longer grinding times than usual
• A smooth or worn diamond surface at the pointed tip

There is no fixed number of restorations per bur. Bur life depends on the block material, restoration size and coolant condition, so judge by these signs.

How to change a cylinder pointed bur

Follow your unit's operating instructions and CEREC software for the exact procedure. In general, start the bur change in the software, remove the worn bur with the wrench supplied with the unit, rinse ceramic sludge from the chuck, insert the new bur straight and tighten it as the manual describes, then confirm the change and calibrate if your manual calls for it.

Tips for bur life and surface quality

• Grind wet: keep the water tank filled and the coolant additive at the correct level.
• Use the cylinder pointed bur only for lithium disilicate and glass ceramics, never zirconia.
• Clean sludge from the grinding chamber and chuck area regularly.
• Store spare burs in their packaging so the diamond tip is protected.
• Do not reuse a bur that was dropped or has a chipped tip.

Eagle burs, not original tools

These are compatible Eagle cylinder pointed burs, not original manufacturer tools. Machine names and REF numbers are listed only to show which units they fit.