The NLGI grade refers to consistency (hardness) and not viscosity. The test method is ASTM D217. The measurement is “depth of penetration of a standard brass cone into the worked grease”. The unit of measure is decimillimeter or dmm.
An NLGI 2 has a worked penetration of 265-295 dmm. An NLGI 1 has a worked penetration of 310-340 dmm. A 1.5, which is not a real NLGI grade, should have a worked penetration of 296-309 dmm. However, it may be widened to something like 290-315 dmm.
The “32” refers to base oil viscosity which is an ISO 32 PAO.
The grease’s thickener is clay. Clay greases are notoriously incompatible with metallic soap-based grease such as lithium, lithium complex, aluminum complex.
If the ratchet is lubricated with this grease and you want to change, I suggest that you clean the bearing completely and relubricate. If you can’t clean the bearing, I would purge with the preferred grease and then relubricate frequently until you are confident that the clay grease is removed. You can always just use the recommended grease.