The blade edge can be plain or serrated or a combination of both.

With a soft thud it fell to the deck, the straight, sharp blade edge upward.

He raised the hammer again, using each blow to narrow the base of the blade edge.

Cutting always with the blade edge away from her.

A blacksmith does not hammer a blade edge thin.

That, by itself, wasn't disastrous, the blade edge was designed to handle bird impacts.

Worn slung across the hip with the blade edge (ha) facing down.

I took a deep breath and pressed the blade edge against my left arm, just below the cross burn.

Meanwhile, much has been done, clandestinely, to hone the blade edges.

The blade edges are also beveled to more easily cut curves and circles or shapes.