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2. Slide rule - Wikipedia

   en.wikipedia.org/wiki/Slide_rule

   Slide rule. Typical ten-inch (25 cm) student slide rule (Pickett N902-T simplex trig) A slide rule is a hand -operated mechanical calculator consisting of slidable rulers for evaluating mathematical operations such as multiplication, division, exponents, roots, logarithms, and trigonometry.

3. Tape measure - Wikipedia

   en.wikipedia.org/wiki/Tape_measure

   Diagram showing fractions of an inch on a standard sixteenth measuring tape. A tape measure or measuring tape is a flexible ruler used to measure length or distance. It consists of a ribbon of cloth, plastic, fibre glass, or metal strip with linear measurement markings. It is a common measuring tool.

4. Sewing gauge - Wikipedia

   en.wikipedia.org/wiki/Sewing_gauge

   Sewing gauge. A sewing gauge is a ruler, typically 6 inches long, used for measuring short spaces. It is typically a metal scale, marked in both inches and centimeters with a sliding pointer, similar in use to a caliper. It is used to mark hems for alterations as well as intervals between pleats and buttonholes and buttonhole lengths.

5. Ruler - Wikipedia

   en.wikipedia.org/wiki/Ruler

   A variety of rulers A 2 m (6 ft 6 + 3 ⁄ 4 in) carpenter's rule Retractable flexible rule or tape measure A closeup of a steel ruler A ruler in combination with a letter scale. A ruler, sometimes called a rule, scale or a line gauge, is an instrument used to make length measurements, whereby a length is read from a series of markings called "rules" along an edge of the device. [1]

6. Stanley Odd Jobs - Wikipedia

   en.wikipedia.org/wiki/Stanley_Odd_Jobs

   Its closest cousin among common, modern tools, is the combination square, which shares with the Odd Job the functions of scribing, squaring, level/plumb, and the sliding and locking ruler [2] (originally a 12 inch wooden ruler with a built-in trammel point was included with units bundled with a ruler, [3] but this was often changed and many are ...

7. Calipers - Wikipedia

   en.wikipedia.org/wiki/Calipers

   The vernier scales may include metric measurements on the lower part of the scale and inch measurements on the upper, or vice versa, in countries that use inches. Vernier calipers commonly used in industry provide a precision to 0.01 mm (10 micrometres), or one thousandth of an inch. They are available in sizes that can measure up to 1828 mm ...