Staple Set is a method of brush construction where filaments are compressed and inserted into pre-drilled holes under pressure and retained by steel staples driven into the core. 

Epoxy Set brushes are assembled by cementing filaments into pre-drilled holes in the core using epoxy resin.  

 

Wire Drawn brushes are assembled by sewing filaments into pre-drilled holes with fine wire through the core where it is tied. This is a very secure method of holding material into the brush, but is labor intensive.

 

 

Trim Shapes 

Flat: Most common shape used unless there are specific reasons for using other shapes.
    
Bevel: Reduces brush resistance and conforms to surface being brushed.     

Chisel or Converging: Allows for greater concentration of brush filaments to obtain more intense brushing action.     

 

 

Convex: To conform to the surface being brushed.    

 

 

Step: For brushing irregular or uneven surfaces. Many variations are possible.
    

 

Combination Step: Combination of step trims to conform to the surface being brushed.
  

 

Double Bevel: To conform to the surface being brushed.