Type27 And Type 29

Type27: If operators need to surface-clean or provide a smooth finish, use a T27 flat disc that's parallel to your work area, you will have a little bit more force when flap discs are touching the surface. For best results, use light and even pressure to optimize the grinding process and reduce loading.

Type 29: Operators may want to try  T29 conical disc at a 15 to 20-degree angle to provide maximum and full coverage when it's deep on the weld of the surface.