Material
|
Drill Type
|
VC
(m/min)
|
Feed Rate
mm/rev*Dia
|
Coating
|
Coolant
|
Low alloy
Steel upto
700N/mm 2 |
"N"
Type
Spl Point "Ext C"
Spl Point "TCH" |
50
65-90
85-105 |
0.02
0.022
0.028
|
TiAlN/TiN
TiAlN/TiN
|
Soluble
Soluble
Soluble |
| High Alloy
Steels upto 900N/mm2 |
"N"
Type
Spl Point "Ext C"
Spl Point "TCH" |
45
55-75
65-85 |
0.015
0.02
0.025 |
TiAlN
TiAlN/TiN
|
Soluble
Soluble
Soluble |
| Gray Cast
Iron |
"N"
Type
Spl Point "Ext C"
Spl Point "TCH" |
45-65
60-90
75-100
|
0.025
0.03
0.035
|
TiAlN
TiAlN |
Soluble
Dry/Soluble
Dry/Soluble |
| Malleable Cast Iron |
"N" Type
Spl Point "Ext C"
Spl Point "TCH" |
35-45
55-75
65-85 |
0.025
0.03
0.035 |
TiAlN
TiAlN |
Soluble
Dry/Soluble
Dry/Soluble |
| Barss / German Silver |
"N" Type
Spl Point "Ext C"
Spl Point "TCH" |
70-90
100-120
110-130 |
0.015
0.02
0.02 |
TiN
TiN |
Dry
Dry
Dry |
Aluminum
Rolled / Cast / Alloys
with upto 10% Si |
"N"
Type
Spl Point "Ext C"
Spl Point "TCH" |
150-170
150-200
200-250 |
0.02
0.03
0.035 |
TiN
TiN |
Soluble
Soluble
Soluble |
Aluminum
Rolled / Cast / Alloys
with upto 10% Si |
"N" Type
Spl Point "Ext C"
Spl Point "TCH" |
130-150
150-200
180-225 |
0.02
0.03
0.035 |
TiN
TiN |
Soluble
Soluble
Soluble |