What do you call the thing that makes a hole in your finger when they test your blood?

Question

What do you call the thing that makes a hole in your finger when they test your blood?

Answer 1

a lancet (also used by diabetics to test their blood at home)

Answer 2

This is called a lancet, and is commonly used within a penlet or lancing device.

Answer 3

The needle in the instrument is called a lancet, but the instrument itself is called a lancing device.