IX
Impact device type E
Impact device E uses a synthetic diamond tip (all other impact device
types use tungsten carbide tips). The diamond tip allows it to measure
harder test pieces such as those made out of template steel. This device
type measures steel only and extends the Vickers range to 1211HV
(device type D measures up to 940HV).
The table below shows detailed technical information on each impact
device type.
Parameter (Unit)
Impact device type
D/DC
D+15
DL
C
G
E
General characteristics
Length (mm)
147/86
162
202
141
254
155
Diameter (mm)
20
20
20
20
20
20
Weight (g)
75/50
80
100
75
250
80
Max Hardness (HV)
940
940
950
1000
650
1200
Impact device tip
Diameter (mm)
3
3
2.78
3
5
3
Hardness (HV)
1600
5000
Material
Tungsten carbide
Diamond