The types of chamfer are defined in standards DIN 2175 and DIN 2197 for forming taps and cutting taps, respectively.

Form

A

Chamfer form and length

Flute type

Form

B

Chamfer form and length

Flute type

Form

C

Chamfer form and length

Flute type

Form

D

Chamfer form and length

Flute type

Form

E

Chamfer form and length

Flute type

Form

F

Chamfer form and length

Flute type