Arum 5X-300D Compatible Milling Burs

Arum 5X-300D Compatible Dental Milling Burs

The Arum 5X-300D uses the standard Arum tool-changer interface. Our burs are cut to that interface's 6 mm shank typical on 5X-series and are intended for zirconia, glass ceramic, PMMA, wax and metal on selected models in wet and dry workflows. They replace the OEM tool set directly without any software or collet changes.

What's in the tool family

• Heavy roughing burs for block reduction
• Intermediate burs for contour milling
• Fine finishing burs for margin integrity and occlusal detail
• All cut to the Arum 5X-300D tool-changer shank tolerance

When to replace

Replace burs when you start seeing fuzzy margins, white-line chipping at incisal edges, or an increase in milling time at unchanged feed and speed. All three are signs of cutting-edge wear rather than machine fault. A good habit is to photograph a fresh bur's tip under magnification and compare monthly - wear is obvious at 20x.

Before you order

Check three things on the OEM bur you are replacing: shank diameter, overall length, and tip diameter. These three specs together identify the correct aftermarket bur 95% of the time. If the spec sheet on a product page does not list what you need, contact us with the OEM part number before ordering.

Compatibility

CADBURS manufactures aftermarket dental milling burs for the Arum 5X-300D. We are not affiliated with Arum Dentistry; Arum Dentistry is a trademark of its respective owner and is referenced here solely to describe machine compatibility.