Emasculator

Its function is to simultaneously crush and cut the spermatic cord, preventing hemorrhaging while still detaching the testis from the animal.

[1] The ratchet (visible on the handle) allows the emasculator to be locked in the "closed" position for the 2–3 minutes required for primary hemostasis to occur.

[1] The ends of the "clamp" are rounded and guarded to allow the emasculator to be placed over the testis and spermatic cord without cutting, until pressure is applied.

As the jaws are closed on the spermatic cord it is gripped by the clamping part.

Back-lock retains the clamping part closed unless unlocked.