Cutting bushes with start hole
ISO 8977 D

Material: HSS

Execution:
hardened and tempered, ground to tolerance inside and outside, with lead-in chamfer. 

Hardness: HRC 62 ┬▒2

Ordering example for a cutting bush with start hole, type B with outside diameter D = 8 mm and overall length = 20 mm:
Cutting bush with start hole ISO 8977 B 8,0 x 20

dD
m5
D1
-0,25
d1
max
l
min.
h
+0,5
L
+0,5
Euros ea.L
+0,5
Euros ea.L
+0,5
Euros ea.L
+0,5
Euros ea.L
+0,5
Euros ea.L
+0,5
Euros ea.L
+ 0,5
Euros ea.L
+0,5
Euros ea.
1,08114,0451613,642014,622214,902516,402816,723017,073218,343518,71
1,010135,8451613,412014,552214,852516,172816,483016,823217,783518,13
1,213168,055--2014,792215,132516,402816,723017,073218,633519,00
1,216199,555--2015,822216,122517,782818,133018,503220,293520,69
1,5202312,085--2016,962217,302519,042819,413019,803222,243522,68
1,5252817,385--2017,782218,132520,072820,473020,883224,073524,55
1,5323520,785--2030,952231,582535,542836,253036,973243,573544,44
1,5404327,785--2033,822234,502538,412839,183039,963244,713545,60
1,5505337,085--2042,422243,262546,442847,363048,313249,273550,27

Important:
The diagonal profile should not be longer than d1 max. on dies for square and rectangular forming.