The following measuring instruments used by an I.T.I Fitter are explained along with images.

- Steel Rule

- Try square

- Outside caliper

- Inside caliper

- Divider

- Spirit level

- Outside micrometer

- Inside micrometer

- Vernier caliper

- Vernier height gauge

- Vernier bevel protractor

- Screw pitch gauge

- Wire gauge

- Telescopic gauge

- Dial indicator

- Sine bar

Speak tool button is provided for listening the theory of measuring instruments.