Also called the turret, the part of the microscope that holds the objective lenses.

the link between two lenses; rests on nose

The part of the microscope that holds the objective lenses also called a revolving nosepiece or turret.

The structural member of the installation tool that supports the head of the fastener during installation. With the head being supported and an axial load applied to the threads, the counterbore is placed in compression causing it to yield and create the bulb. For spin-spin tools the nosepiece has radial serrations to prevent the insert from rotating relative to the tool. Spin-pull tools have smooth nosepieces. The nosepiece is sometimes referred to as an anvil.

armor plate that protects the nose