M12RW64 Carbide Tipped Miniature Corner Round 

1/4 Radius x 13/16 Dia x 3/8 x 1/4 Inch Shank

Diameter (D)	13/16
Radius (R)	1/4
Cutting Height (B)	3/8
Shank (d)	1/4
Overall Length (L)	2
Replacement Bearing	47703
D1	8mm