(A) Dia : 21.4
(B) Flute Length : 12.7
(C) Overall Length : 63.5 Measurements are in mm
BULL NOSE RADIUS BIT W/BEARING - A time saving bit for rounding over both sides of a board in one pass. Carbide Tipped, Two Flutes with Ball Bearing Guide, 1/2" Shank, B1: 12.7mm B2: 5.5mm, Replacement Ball Bearing TB8.