Engineering Tool Kits Overview Model Number Description Number of Tools Measurement RBA10 General Industry VDE Number of Tools: 82 Metric RBA16 General Industry Number of Tools: 213 Metric RBA16IMP General Industry Number of Tools: 191 Imperial (SAE / Standard) RBA17 General Industry and VDE Cabinet Number of Tools: 82 Metric RBA18 General Industry Medium Toolkit Number of Tools: 75 Metric RBA19 General Industry Big Toolkit Number of Tools: 119 Metric RBA20 General Industry Number of Tools: 165 Imperial (SAE / Standard) RBA21 General Industry VDE Toolkit Number of Tools: 60 Metric RBA3 Mechanic Hand Trolley Case with Tools Number of Tools: 146 Metric RBA3IN Mechanic Hand Trolley Case with Tools Number of Tools: 194 Metric RBA4 Mechanic Cabinet with Tools Number of Tools: 114 Metric RBA43B Boiler Kit Number of Tools: 7 Imperial (SAE / Standard) / Metric RBA4IMP Aircraft Mechanic Cabinet Number of Tools: 96 Imperial (SAE / Standard) RBA5 Mechanic Workshop Cabinet with Tools Number of Tools: 164 Metric RBA6 Mechanic Cabinet with Tools Number of Tools: 287 Metric RBA6IMP Aircraft Mechanic Cabinet Number of Tools: 281 Imperial (SAE / Standard) RBI9900TM Mechanic Metal Step Case with Tools Number of Tools: 193 Imperial (SAE / Standard) RBI9950TMIN Engineers Kit with 174 Metric Tools Number of Tools: 174 Metric RBT300TDR Plant Maintenance Kit Number of Tools: 120