bk12 bf12

Specifications of BK12:
Model: Screw Support.
Shaft Dia.: 12mm.
Material: Bearing Steel.
Color: Black.
BK10 Size: 60mm x 32mm(L*W).
 
Specifications of BF12:
Model: Screw Support.
Shaft Dia.: 10mm.
Material: Bearing Steel.
Color: Black.
BK10 Size: 20mm x 60mm(L*W).

Dimensions and suggest dimension of End Machining