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Profiles and
knurling pitches
DIN 403 describes and specified the knurling profile on the knurling wheel.
DIN 403 defines knurling forms AA, BL, BR, GE, GV, KE and KV. Knurling wheels
that deviate from DIN 403 are considered special knurling tools and are
custom manufactured by Hommel+Keller based on customer drawings.
AA Knurling wheel with axially parallel
grooves BL
GE Left / right-hand knurling wheel,
raised points, 30° GV
KV Cross knurling wheel,
lowered points, 90°
BR
Left-hand knurling wheel
Right-hand knurling wheel
KE Cross knurling wheel,
raised points, 90°
Left / right-hand knurling wheel,
lowered points, 30°
The knurling profile on the knurling wheel according to DIN 403
is based on the desired knurling profile on the ­workpiece
(DIN 82) and the tool holder that is used.
The knurling pitch p refers to the distance between tooth crests.
The pitches = 0.5 / 0.6 / 0.8 / 1.0 / 1.2 / 1.6 are ­standardised
according to DIN 403. The Hommel+Keller ­product spectrum in-
cludes other pitches as well. They are listed below in mm and TPI.
Other pitches are available as custom manufactured versions.
Standard pitches
from Hommel+Keller
mm
0.3 0.4 0.5 0.6 0.7 0.8
TPI 84.7 63.5 50.8 42.3 36.3 31.8
mm 1.0 1.2 1.5 1.6
TPI 25.4 21.2 16.9 15.9
2.0
12.7
mm 0.3 0.4 0.5 0.6 0.7
0.8
TPI 84.7 63.5 50.8 42.3 36.3 31.8
mm 1.0 1.2 1.5 1.6
2.0
12.7
TPI 25.4 21.2 16.9 15.9
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