Proportional plotting device
Protective cage for bicycle meters, timers, and cycle computers
Protective cage for gauges
Protective cap for a pressurized vessel valve
Protective cap for a thermocouple in a gasifier
Protractor
Protractor
Protractor
Protractor
Protractor
Protractor
Protractor
Protractor
Protractor
Protractor
Protractor and drawing template
Protractor attachment for a level
Protractor compass
Protractor with a movable arm
Protractor with an auxiliary ruler