Exam 13: Dimensioning Holes, Keyways, and Keyseats

A flat-bottomed hole that provides clearance for the head of a screw, bolt, or pin is

The process that allows the head of a flat head screw to be flush or slightly below the surface of the workpiece is:

Holes that do not go all the way through a part are commonly referred to as blind holes.

Dimensions for counterbores include the angle and the required finished diameter.

The depth of a hole is defined as the distance from the surface of the part to the point of the drill.

Hole diameters should dimensioned in views where they appear as:

The spiral flutes of a twist drill carry chips out of the hole.

One of the most accurate methods of producing holes that are round, concentric, and accurately sized is:

The method of dimensioning a hole often depends on the size of the hole and how it is to be produced

The process that is used to provide a smooth, flat surface on an irregular surface is:

Keyways and keyseats are dimensioned from the opposite side of the hole or shaft