Clinometers; Inclinometers; Micrometers; Verniers; Angle gauges; Carpenters' folding rules; Carpenters' rules; Contour gauges; Gradient indicators; Graduated rulers; Marking gauges for joinery purposes; Measuring rules; Micrometer gauges; Ring gauges; Slide calipers; Slope indicators; Square rulers for measuring; Squares for measuring; T-squares for measuring; Tool measuring instruments