Exact Countersink Bits with 1/4in, Hexagonal Shafts
- Exact 05646, A 20.5mm HSS countersinking bit with head according to DIN 335 form C & a 6.3mm (1/4in.) hex bit shank drive (DIN 3126) for fast tool changes. Exact 05646 Countersink Bit M10 20.5mm