Jewelers burs made of tungsten vanadium steel.
They have 3/32(2.35mm) diameter shanks, are approximately 1 3/4(44 mm) long and are used with flex shaft or micromotors.
Sold in pack of 6 pieces.
Busch Hart 90° Burs Sold in Packs of 6
Size: 1.40mm - 4.50mm