R value is a rating of a material and its ability to resist heat transfer (higher number = less heat transfer)

The rafter hook is a foldable hook on side of the saw used for hanging the tool when not in use

Rails are continuous structural ladder parts that hold the rungs in place

The rake is the section of a paint tray where a roller is properly loaded. Sometimes referred to as the “ramp”

Raking light is the placement of a light source at an extreme angle to a surface to help emphasize defects

The ramp is the section of a paint tray where a roller is properly loaded. Sometimes referred to as the “rake”

Random orbital is a sanding action that slowly spins a circular sanding disk while simultaneously using an orbital action to help prevent swirl marks

A random orbital sander is a tool that adds a slow spinning motion of an abrasive disc together with an orbital motion for better finishing

A rattail is a pointed thin long brush handle style best for detail painting

Reciprocating is a back and forth action of a blade that moves in a straight line to make a cut.