Edco,72313 Flex Head Assembly with cropped shroud

•The 7" Flex-Head Assembly with cropped shroud can be used for preparing a smooth, flat floor to receive a new coating, removing coatings, or grind rough concrete surfaces. •Use either with a vacuum or water for dust control. •The flex head assembly includes a flex flange(hub) with shaft, a 302 more flex coupling, a cup wheel mounting flange, a 1/4x1" pin roll and a 5/8-11 flange nut. •The rest of the assembly includes two grade 8 screw caps, two lock washers and a hex nylon jam nut.