Model 920 Rat Adaptor

Model 920 Rat Adaptor includes a nose and tooth bar assembly offering various stereotaxic adjustments.

Dorsal/Ventral adjustment dial – Calibrated in 100 micron increments, 1 mm per revolution.
Dorsal/Ventral adjustment – 30 mm
Dorsal – 10 mm above ear bar zero
Ventral – 20 mm below ear bar zero
Adaptor Plate A/P adjustment – 44 mm
Ear Bars – Model 957 18° Tip Rat Ear Bars
(6.3 mm square with 35 mm of calibration).