DeWalt DC411-XE Instruction Manual page 13

115 mm (4-1/2") GRINDING WHEELS
Type 27 guard
unthreaded backing
flange
Type 27 depressed
center wheel
threaded clamp nut
Type 27 guard
Type 27 hubbed wheel
Type 27 guard
76.2 mm (3")
wire cup brush
11
WIRE WHEELS
Type 27 guard
101.6 mm (4") wire wheel