54172 Carbide Tipped Corner Round 

3/8 Radius x 1-1/2 Dia x 1 Inch x 1/2 Shank

Diameter (D)	1-1/2
Radius (R)	3/8
Cutting Height (B)	1
Shank (d)	1/2
Overall Length (L)	2-7/8
B1	25/32
Replacement Bearing	47716
Flutes	2
D1	1-3/8