Q:
# What is a sine bar?

**A sine bar is a hardened steel bar set on two cylinders whose centers are an exact distance apart.** They are used by machinists in setting materials at precise angles during milling, grinding and inspection.

A sine bar is often used with gauge blocks. The sine bar forms the hypotenuse of a right triangle, while the gauge blocks form the opposite side. The height of the gauge blocks is found by multiplying the sine of the desired angle by the length of the sine bar. To find the height for a 13-degree angle, multiply the sine of 13 by five. The result of 1.124 would then be measured using gauge blocks of appropriate thickness.

Learn more about Geometry-
Q:
## What are parallel lines?

A: Parallel lines are defined as lines that are equal distance apart and never touch. Being an equal distance apart is also known as equidistant. Parallel lin... Full Answer >Filed Under: -
Q:
## What is the distance formula?

A: The distance formula indicates that distance is equal to the square root of {x(sub 2) - x(sub 1)} (squared) + {y (sub 2) - y (sub 1)} (squared). The "x" an... Full Answer >Filed Under: -
Q:
## How can you calculate the distance between two cities?

A: The distance between two cities is calculated with an online distance calculator. Timeanddate.com offers a distance calculator that calculates the greatest... Full Answer >Filed Under: -
Q:
## What does a parallel line look like?

A: Parallel lines are two lines that are the same distance apart along their length. They never touch one another. They look like the outer lines of a road or... Full Answer >Filed Under: