Designed to fit Porter Cable and Black and Decker Type 340/341 series sanders.

Confirmed fit for:
Dewalt DW411 Type 2.

COULD ALSO POSSIBLY BE COMPATIBLE WITH:

DeWalt:
DW411 Type 1 Palm Sander
DW411 Type 3 Palm Sander
DW412 Type 2 Orbital Sander
DW412 Type 1 1/4 Finishing Sander
D26441 Type 1 Sheet Sander
D26441K Type 1 1/4 Sheet Sander
D26441K-AR Type 1 1/4 Sheet Sander
DW411K (Type 2) Orbital Sander Kit
DW411K (Type 3) Orbital Sander Kit
DW412-35 (Type 1) 1/4 Sht Sander-Lat.Amer
DW412-35 (Type 2) 1/4 Sht Sander-Lat.Amer
DW412-44 (Type 1) 1/4 Sht Sander-Chile
DW412-44 (Type 2) 1/4 Sht Sander-Chile
DW411-B2 (Type 1) 1/4 Sheet Palm Sander
DW412K (Type 2) Orbital Sander Kit
DW411-B3 (Type 1) 1/4 Sheet Sander
DWE6411 (Type 1) 1/4 Sheet Orbital Sander

Black and Decker:
BD5000 Type 1 Sander
BD5000 Type 2 Sander
4011 Type 1 Professional Finishing Sander
4011-04 Type 1 Plus 1/4 Sheet Palm Grip Sander
2714 Type 2 Palm Grip Sander
2714 Type 1 Palm Grip Sander
2711 Type 3 Industrial Finishing Sander
2711 Type 2 Industrial Finishing Sander
2711 Type 1 Industrial Finishing Sander
24864 Type 1 Professional Palm Sander
370 Type 1 1/4 Sheet Palm Sander

Porter Cable:
342 Type 1 1/4" Sheet Palm Sander
342 Type 2 1/4" Sheet Palm Sander
380 Type 1 1/4 Sheet Sander
342K (Type 1) 1/4 Sheet Sander Kit
342K (Type 2) 1/4 Sheet Sander Kit

Some Craftsman Palm Sanders.