Reddit reviews Kutzall Original Ball Nose Rotary Burr 1/8" Shaft, Coarse - Woodworking Attachment for Dremel, Foredom, DeWalt, Milwaukee. Abrasive Tungsten Carbide, 1/4" (6.3mm) Dia. x 1/2" (12.7mm) Length, BN-14-E
We found 1 Reddit comments about Kutzall Original Ball Nose Rotary Burr 1/8" Shaft, Coarse - Woodworking Attachment for Dremel, Foredom, DeWalt, Milwaukee. Abrasive Tungsten Carbide, 1/4" (6.3mm) Dia. x 1/2" (12.7mm) Length, BN-14-E. Here are the top ones, ranked by their Reddit score.
Rapid Material Removal saves you time and effort, letting you focus on the task at hand.Tungsten Carbide Teeth give you outstanding wear-life for a much longer lasting burr.Comfortable, effortless operation allows you to easily and quickly remove a variety of materials.Coarse coating provides fast stock removal while leaving a relatively smooth finish.Should be used on non-metals or non-metallic materials.
For the bowl, the bit was a single-cut burr. Like this: https://www.amazon.com/dp/B00ECMQUGK/ref=cm_sw_r_em_apa_i_3DFRDbPJCREKT
For the handle, a coarse bit, like this: https://www.amazon.com/dp/B0037MFFQ2/ref=cm_sw_r_em_apa_i_zHFRDbEF4ADCX
Both used on an old in-line, Dremel-style rotary tool. It's a bit more robust than a Dremel, but same idea.
Edit: Ah this is pretty much the tool:
https://www.amazon.com/dp/B01C3WPX6I/ref=cm_sw_r_em_apa_i_ELFRDbCV6QAX4