My serrated ratasha key set, 6 pieces -. 10-19 mm..Chrome vanadium STANLEY Model M.4-89-907
50 meter sensitive laser measuring device +/- 1.5 mm with STANLEY computer, model TLM 165
100 meter laser measuring device sensitive +/- 1.0 mm with STANLEY computer, model TLM 330
30 meter laser measuring device, sensitive +/- 2.0 mm with STANLEY computer, model TLM 99