OnlineShop

Terms Around the Tap

You will encounter these terms again and again in connection with taps. With the help of the sketches, you will get an understandable overview here.

general concepts

General terms

γP/1P = rake angle

γ2P = rake angle peel cut

γr = Ridge angle

N = Number of grooves/bridges

d3 = Groove length

Zb = land width

Nb = Groove width

Peel cut and relief cut

Peel cut and relief cut

ha = cut relief to tooth width

hr = gash relief per pitch

I7 = Gate cut length

γFa = Peel gate angle

Groove shapes

approx. 10° left-hand helical grooves

approx. 15° right-hand helical grooves

approx. 15° right-hand helical grooves with exposed teeth

approx. 35° and 45° right-hand helical grooves

Peeling grooves with lubrication groove

Groove shapes

Pf = twist pitch

γF = Angle of twist

Groove shapes

Internal centering

Full tip

Half point