What parts does a miter saw protractor consist of?

All of the parts below (such as the rotating arms, hanging holes, O-ring, and pivot pin) make up the frame of the miter saw protractor.

Swivel arms on miter saw protractor

All miter saw protractors have two arms that can be moved around the O-ring to accommodate different angles.

The arms can rotate 360 ​​degrees, which gives the instrument more freedom to maneuver when measuring.

Hanging holes

Most miter saw protractors have holes in the bottom of the arms that are used to hang the tool when not in use.

The tool can be hung on a nail or on a rope to keep it securely away from damage.

Miter saw protractor O-ring

The o-ring acts like a pivot so the two arms can rotate around it.The O-ring has a protractor scale along with arrows indicating the angle to be measured. As the protractor arms move, the hands and scales rotate to provide measurement.

pivot pin

The pivot pin is a small metal link located on the back of the o-ring that holds the two miter saw protractor arms together, allowing them to move around their axis.

The pivot pin can be tightened or loosened to control the amount of tension at the pivot point.

This can be done with a hex wrench inserted into the hex head of the pin and turned. A hex wrench is a tool used to hand-tighten bolts, screws, studs, or pins with a hex head.

If there is enough tension in the pivot (O-ring), the arms will stay in place, holding the measured angle. If there is almost no tension in the joint, there is a chance that the arms will move after the angle is measured, resulting in an inaccurate measurement.To loosen the pivot pin and reduce tension, turn the hex wrench and hex socket counterclockwise. To tighten the pivot pin and increase tension, turn the hex wrench and hex head clockwise.

Miter Saw Protractor Scale

The miter saw's two protractor scales allow the user to measure angles. The scale contains an inner pointer and an outer scale (for single cuts), as well as an outer pointer and an inner scale (for oblique cuts).A single cut is made for one workpiece at an angle. The cross section is an example of a single incision.

A bevel cut is a cut at an angle, usually a 45 degree angle. The angles for these particular types are different because a miter cut is used to form the miter joint. Mitered seams are when two pieces meet at a corner, so each miter cut will be the same. A single cut is just one cut at an angle to one work piece.

External arrow and internal scale (oblique cut)

The outer arrow points to the inner scale when measuring to show the angle of the bevel.

Internal pointer and external scale (single cut)

The inner arrow points to the outer scale to show the angle for one cut.

Protractor with two scales on the miter saw protractor

The dual scale protractor is found on the back of some types of miter saw protractors. When measuring, the protractor provides the actual angle, and can also determine the angle of the roof when using the roof pitch scale.The difference between this type of protractor and the standard miter saw protractor is that if you measure a 90 degree angle, this protractor indicates 90 degrees.

The standard miter saw protractor shows 45 degrees for a bevel cut (half 90 degrees) and 0 degrees for a single cut. This is because 0 degrees on a miter saw will be a 90 degree single cut.

Protractor scales read from 0 to 180 degrees to 0 and 180 degrees to 0 to 180 degrees, so you can measure left to right or right to left.

Arrow transports

The arrow located above the protractor scale indicates the angle measurement.