Manual images are from the AMMCO Brake Lathe 3000, 4000, 4100, 7500, 7700 Drum & Disc Brake Lathe manual, pages 10 and 11.
AMMCO 9592 Spindle Lock Front Clamp w/ Knob for Brake Lathe 3000 4000 4100 7700
AMMCO 9592 Spindle Lock Front Clamp for Brake Lathe 3000 4000 4100 7700
AMMCO 9592 Spindle Lock Front Clamp, Red Knob & Dowel (Fits 3000 4000 4100 7700)
Milwaukee Tool 1/2 in. Drive 90-Tooth 18 in. Extended Ratchet