Gear Cutting Tools

Heavy duty roughing hobs
(roughing type hobs)
for spur and helical gears to
module pitch
20° pressure angle
basic profile III to DIN 3972
with positive rake (undercut)
optionally with chip breaker
grooves
single start right-handed
with drive slot
d 1 d 2
l 0
l 3
KHSS-E EMo5Co5
Cat.-No.
2051 relief turned ■ Quality grade B/C to DIN 3968 ■ with 20 gashes
2053 relief ground ■ Quality grade A to DIN 3968 ■ with 20 gashes
2055 relief turned ■ Quality grade B/C to DIN 3968 ■ with 16 gashes
2057 relief ground ■ Quality grade A to DIN 3968 ■ with 16 gashes
Dimensions in mm
m d 1 I 3 I 0 d 2
6 150 108 140 50
7 126 158
8 160 144 176
9 162 194
10 170 180 214 60
11 180 198 232 60
12 190 216 250
13 200 234 268
14 210 252 286
15 230 270 310 80
16 240 288 330
18 260 318 360
20 290 360 406 100
22 300 396 442 100
24 310 432 478
27 330 486 532
30 340 540 586
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