Even the brightest bulbs will eventually burn out and need to be replaced. The STEELMAN 05515 is a replacement bulb for use in a number of STEELMAN lighted inspection tools. Made to the same manufacturing specifications as the originals, this replacement bulb provides the same level of bright, long lasting illumination. The compact bulb comes built-into a threaded metal base that allows for quick and easy installation to get you back to work fast. The included plastic tube can be used to hold the small bulb during installation and Can be used in the following models: STEELMAN 05100A 18-Inch Fixed Shaft Inspection Tool, 05180A 18-Inch Flexible Lighted Inspection Tool, 05240A 24-Inch Flexible Lighted Inspection Tool, 05420 42-Inch Flexible Lighted Inspection Tool, and 05540 42-Inch Lighted Retrieval Claw.