Vanadium steel burs diameters 4mm and 5 mm , Shaft diameter is 2.5mm, length 39mm. These fine tool burs are suited for shaping, texturing, and setting . Also used in wood and root carving. Require a mechanised unit like Proxxon 50/E or a Micromot flexible shaft 110/P attached to Proxxon IB/E or any other driver unit.
A product from Switzerland.