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USER GUIDE
Coolant Pressure and Volume Recommendations
Required Coolant Pressure
Optimum pressure
60 20 Good pressure SOLID CARBIDE DRILLS
Minimum pressure
Coolant Pressure p[bar] 40 16 Coolant Volume V[l/min] Required Coolant Volume
50
Optimum volume
12
30
Good volume
20
Minimum volume
8
10
0.0 4
3 5 10 15 20 Required coolant pressure and volume for SCD
Tool Diameter d(mm)
drills with internal coolant spiral nozzles.
Force and Power Characteristics
Feed Force Net Power Consumption
(kN) (kW)
3.0 3.0
2.5 2.5
2.0 2.0
1.5 1.5
1.0 1.0
0.5 0.5
0.0 0.0
2 4 6 8 10 12 14 16 18 2 4 6 8 10 12 14 16 18
Drill Diameter Drill Diameter
D (mm) D (mm)
f=0.30 mm/rev f=0.30 mm/rev
f=0.25 mm/rev f=0.25 mm/rev
f=0.20 mm/rev f=0.20 mm/rev
Material: SAE 4340
Speed: 100 m/min
Values may change for different materials and
drilling conditions.
Stability Tool Life
The stability of the application volume is important in order Drills should not be used with flank
to obtain the very best tool life and hole accuracy. Check wear exceeding 0.2-0.3 mm.
the condition of the machine spindle, fixture and fixturing
of the component to secure maximum stability and rigidity.
Unstable conditions can cause tool breakage. 0.2-0.3 mm
Max 0.02 mm
Max 0.02 mm
Correct Direction Incorrect Direction
Stationary Drill Rotating Drill External Coolant External Coolant
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