Torque range...... 0.6 - 16 oz.-in.
Part number........B1 - (voltage ) - 1F, .....shaft, with flat, extends on 1 side (same side as mounting holes)
Part number........B1 - (voltage ) - 1FR, .....shaft, with flat, extends on reverse side from mounting holes only
Part number........B1 - (voltage ) - 2F, .....shaft, with flat, extends on 2 sides