Amana Tool 45710 V Groove 5/8 Diameter 1/4 Shank.

Note: 90 deg 'V' Groove Bits are for decorative purposes and are not intended for 'miter-folding' etc. *1/4" shank not recommended and not guaranteed.  2 Flute 60 deg 'V' Groove Bit designed for lettering signmaking and decorative work.