63131016010, Fein KBH Carbide Tip 16mm X 5/32" hole 

Carbide-tipped with optimum service life for efficient 

drilling work in sheet metal up to 5/32 in (4 mm) thickness.

Inch dimensions, drilling depth 5/32 in (4 mm).
 

Fits:
KBH 25-2 U (KBH 25-2 U)