DeWalt DW831 Instruction Manual page 13

Wire Wheels
Type 27 guard
3" (76.2 mm)
wire cup brush
Type 27 guard
4" (101.6 mm)
wire wheel
CAUTION: Use a Type 27 guard with wire brushes and wheels. Operators and others in the area should wear appropriate eye, face
and body protection. Strands of wire may break and fly off when wire wheels and brushes are in use.
CAUTION: Type 1 abrasive and diamond cut-off wheels may not be used on this tool. A Type 1 cut-off wheel guard is not available
for these grinders.
Sanding Flap Discs
Type 27 guard
unthreaded backing flange
non-hubbed sanding flap disc
threaded locking flange
Sanding Discs (DW831)
Type 27 guard
hubbed sanding
flap disc
11
rubber backing pad
sanding disc
threaded clamp nut
WARNING: DW840 cannot be
used with conventional sanding
discs and backing pads due to
mismatched rated speeds.