Microscope

Ladder 

A wrench and a screwdriver crossing each other.

A utility shelf or cart with three tiers for storage.

A camera with lens, built-in flash, and shutter release button.

An axe positioned vertically and sideways.

A pen tool icon or a pointy tip of a fountain pen.

A fountain pen with a pointy tip lying horizontally.

A triangular and pointy mouse cursor overlapping a square with multiple equally distanced nodes. 

A paint brush with a curved handle containing multiple brushes inside.

A busy and overworked manager or employee surrounded by charts, graphs, and notifications.