Dremel 115HP rotary carving bit
115HP is a high-performance carving bit with a 5/16-inch working head.

How to choose
Compare the wider head for shaping where there is room around the cut. A narrow engraving point serves a different level of detail even if the tool-side holder is compatible.
Compatibility and limits
5/16-inch working head · two Max Life carving bits
Care
Before mounting the accessory, check its speed rating against the tool and use the holder specified for its shank or mandrel. Refer to the exact model instructions for the workpiece.
Questions before buying
Why consider this head rather than a small 9904?
Compare the larger head where you can work across a broader surface. The 9904 has a smaller cutting end for detail when the surrounding edge limits clearance.