Dial Test Indicator, Starrett Last Word

Starrett catalog number 711LPSZ.
Steel Contact Point Length: 5/32" (4 mm)
Steel Contact Point Ball Diameter: 0.120" (3 mm)
These handy test indicators are among the most versatile available. Their small size and variety of attachments handle all jobs with ease and accuracy. A very useful feature is the shaded dial - when used with a mirror, such as in a jig bore application, the operator always knows where he is.

At rest, an indicator’s needle points at a random position, usually in the 10 o’clock range. This is completely normal, as the needle’s position at rest is irrelevant to the use of an indicator.

An indicator is only useful when the tip is bearing against a surface to be measured. The action of pressing the tip against the surface moves the needle, also to some random position. But this position is relevant; turn the bezel so that the needle is pointing at zero. Now you can make measurements, both positive and negative, relative to the starting position.

WARNING: This product can expose you to lead, which is known to the State of California to cause cancer and/or reproductive harm. For more information go to www.P65Warnings.ca.gov.