Rake angle is a parameter used in various cutting and machining processes, describing the angle of the cutting face relative to the work. There are two rake angles namely back rake angle and side rake angle,both of them help in the guiding of chip flow. There are three types of rake angles: positive, negative, and zero. Positive rake angles reduce cutting forces and power requirements (which means the tool is sharp and pointed;increase in the rake angle positively avoids the formation of the built up edge,helps in the formation of continuous chips in ductile materials,but has an adverse effect on the strength of tool as small included angle in the tip may cause it to chip away; negative rake angles increase the strength of the cutting edge; and a zero rake angle is the easiest to manufacture,but has a larger crater wear when compared to positive rake angle as the chip slides over the rake face.

A rake is an angle of slope measured from horizontal, or from a vertical line 90° perpendicular to horizontal.

De balhoofdhoek is de hoek die de voorvork van een motorfiets ten opzichte van het wegdek maakt.