The stubby blade jumped out and locked into place.

He depressed the button, and the blade swung up and locked into place.

The knife jumped slightly as the blade sprang out and locked.

The blade locked into place with a heavy metallic clunk.

Their blades locked together briefly before the pirate took a single long and eminently sensible backward step.

I blocked it, but I felt our blades lock.

When the blades lock, hit the power disconnect.

As soon as the blades lock, hit the power disconnect, and dump the thrusters.

Then Will heard the faint click as the crossed blades locked.

The blade snapped out of the young man's stiletto and locked into place.