We have for sale a variety of 3.5 Inch Soag Paper Drill bits in a various diameters. These are all made in the EU for high quality materials.
Drill Bit lengths can vary under 5mm in diameter.
We do need to point out that the paper drill bits with the smaller diameters between 2mm and 4mm are extremely fragile and delicate. There are no returns on breakages of the small drill bits as detailed above.