Dremel Wood Drill Bit Set - 4 Piece Create a flower planter for your terrace or balcony. The dremel wood drill bit set contains 4 drill bits with centering point for drilling into wood. The different drilling diameters included are 3mm, 4mm, 5mm and 6 mm. The titanium coating offers high performance and longer lifetime. Specifications: - Shank diameter: 3.2mm - Usage: Unique Dremel Titanium wood drill bits with diameter 3. 4. 5 and 6mm. - Maximum RPM: 35.000 1/min