Data Sheet

137
05
d1
d2
t
Table of recommended cutting speeds
for Solid TC countersinkers
f in mm/rev = feed per revolution
Countersinkings, type H
for cylinder-head screws as per DIN 84 and DIN 7984
for thread-cutting screws as per DIN 7513, Type B
for thread-furrowing screws as per DIN 7500, Type B
Countersinkings, type J
for cylinder-head screws as per DIN 6912
Countersinkings, type K
for cylinder-head screws as per DIN 912
Countersinkings as per DIN 74, Sheet 2
Type A for:
- countersunk screws as per DIN 963 and DIN 965,
- raised countersunk head screws as per DIN 964 and DIN 966,
- thread forming screws type F and G as per DIN 7513 and type D and E as per DIN 7516,
- countersunk tapping screws type K, L, M and N as per DIN 7500,
- wood screws as per DIN 97 and DIN 7997
- oval head wood screws as per DIN 95 DIN 7997
Type B for:
countersunk screws with hexagon socket DIN 7991
Material: High carbon
struc. steel
up to
700 N/mm²
High carbon
struc. steel
up to
700 N/mm²
Alloyed
steel
up to
1200 N/mm²
Cast
iron
up to
250 N/mm²
Cast
iron
over
250 N/mm²
CuZn
alloy
brittle
CuZn
alloy
tough
Aluminium
alloy
up to
11% Si
Thermo-
plastics
Duro-
plastics
Vc = m/min 15 12 8 12 10 25 15 20 20 10
Ø mm r.p.m. f r.p.m. f r.p.m. f r.p.m. f r.p.m. f r.p.m. f r.p.m. f r.p.m. f r.p.m. f r.p.m. f
6,3 758 0,10 606 0,10 404 0,10 606 0,15 505 0,15 1263 0,13 758 0,13 1011 0,13 1011 0,13 505 0,13
8,3 575 0,15 460 0,15 307 0,15 460 0,20 384 0,20 959 0,16 575 0,16 767 0,16 767 0,18 384 0,18
10,4 459 0,15 367 0,15 245 0,15 367 0,20 306 0,20 765 0,16 459 0,16 612 0,16 612 0,20 306 0,20
12,4 385 0,20 308 0,20 205 0,20 308 0,25 257 0,25 642 0,20 385 0,20 513 0,20 513 0,20 257 0,20
16,5 289 0,20 231 0,20 154 0,20 231 0,25 193 0,25 482 0,22 289 0,22 386 0,22 386 0,25 193 0,25
20,5 233 0,25 186 0,25 124 0,25 186 0,30 155 0,30 388 0,25 233 0,25 311 0,25 311 0,25 155 0,25
25,0 191 0,30 153 0,30 102 0,30 153 0,30 127 0,30 318 0,25 191 0,25 255 0,25 255 0,30 127 0,30
31,0 154 0,35 123 0,35 82 0,35 123 0,35 103 0,35 257 0,30 154 0,30 205 0,30 205 0,35 103 0,35
For
thread
d1 ne
H 12
mm
d1 medium
H 13
mm
d1
core hole
mm
d2
H 13
mm
t
type H
mm
t
type J
mm
t
type K
mm
Tolerance
for t
mm
M 3 3,2 3,4 2,5 6,0 2,4 — 3,4 0 + 0,1
M 4 4,3 4,5 3,3 8,0 3,2 3,4 4,6 0 + 0,4
M 5 5,3 5,5 4,2 10,0 4,0 4,2 5,7 0 + 0,4
M 6 6,4 6,6 5,0 11,0 4,7 4,8 6,8 0 + 0,4
M 8 8,4 9,0 6,8 15,0 6,0 6,0 6,0 0 + 0,4
M 10 10,5 11,0 8,5 18,0 7,0 7,5 11,0 0 + 0,4
M 12 13,0 13,5 10,2 20,0 8,0 8,5 13,0 0 + 0,4
M 14 15,0 15,5 12,0 24,0 9,0 9,5 15,0 0 + 0,4
M 16 17,0 17,5 14,0 26,0 10,5 11,5 17,5 0 + 0,4
M 18 19,0 20,0 15,5 30,0 11,5 12,5 19,5 0 + 0,4
M 20 21,0 22,0 17,5 33,0 12,5 13,5 21,5 0 + 0,4
M 22 23,0 24,0 19,5 36,0 13,5 14,5 23,5 0 + 0,4