54410 Carbide Tipped Reversible Crown Molding 

Extender 7/16 Radius x 1-1/4 Dia x 2-3/8 x 1/2 Inch Shank

Diameter (D)	1-1/4
Radius (R)	7/16
Cutting Height (B)	2-3/8
Shank (d)	1/2
Overall Length (L)	4
R1	3-15/16
Flutes	2