Marking Out

Question 1

Marking gauge

Answer 1

Used a pin at an adjustable length to scratch a line parallel to a surface

Question 2

Cutting gauge

Answer 2

Uses a blade at an adjustable length from a block to cut a line through the wood grain, this allows for the line to be cut without splintering the grain.

Question 3

Mortice gauge

Answer 3

Has two pins at an adjustable distance used to score two parallel lines to mark for a mortice cut to be made. Lines are then drawn in with pencil for better visibility

Question 4

Odd leg callipers

Answer 4

Has one leg that is curved called a locating lug and an adjustable point on the other, also used for scoring parallel lines but mainly on metal

Question 5

Internal calliper

Answer 5

Used for measuring the inside of spaces such as in a tube and can then be measured using a ruler

Question 6

External calliper

Answer 6

Has curved arms to reach round large objects or curves, then is compared to a ruler to find the measurements

Question 7

Set square

Answer 7

Plastic triangles used to mark 30, 45 and 60 degrees

Question 8

Try square

Answer 8

Has a brass face, with a perpendicular steel “blade” that is used to mark a line perpendicular to the surface

Question 9

Mitre square

Answer 9

Used for lines 45 degrees from a surface usually for mitre joints

Question 10

Engineers square

Answer 10

Try square for metal, most metal working tools are made from metal and wood tools from wood

Question 11

Micrometer

Answer 11

A high precision measuring tool used by engineers, each revolution of the spindle (handle) moves the measuring faces 0.5mm closer together

Question 12

Vernier callipers

Answer 12

Two jaws to measure internal and external faces with a rod to measure depth, has multiple measurements which are different magnitudes of accuracy. Electrical callipers show the exact measurement

Question 13

Densitometer

Answer 13

Made for measuring the density of materials by using a probe to measure hardness and other factors

Question 14

Jig

Answer 14

Jig holds a part in place to allow precise repetition of an action eg. Drilling a hole in the same place on each bit of wood. This speeds up the manufacturing process, but can cost more

Question 15

Go no gauges

Answer 15

Is used as a test for tolerance but only the upper limit, eg. Making sure that a log is not too big to fit in the saw mill when cutting