BMW Factory Tool-this is part of the front control arm tool set used to remove and install the front bushings on the 3 series (E30/E36) (alt-88886312151). This part gets beat up a bit and I keep a spare for my own tool set.
88886312151 83300491919 Control arm bracket tool-removal plate-E30/E36
88886312152 83300491920 Control arm bracket tool-installer-E30/E36
88886312153 83300491921 Control arm bracket tool-frame-E30/E36
88886312154 83300491922 Control arm bracket tool-threaded rods-E30/E36 (takes 2)
88886312155 83300491923 Control arm bracket tool-support bridge (I've never used this piece)