...Down the hole hammer

..

▶ Spec

HK090-1 HK090-2 HK110-1 HK110-2 HK120-1 HK120-2
HK140-1 HK140-2 HK140X
HK170-1 HK170-2 HK180-1 HK180-2 HK220-1
HK270-1 HK270-2 HK270T-1
HK320-1 HK320NA
HK350-1 HK350S
HK370-1 HK370-2 HK370S-2
HK410-1 HK410-2
HK450-1 HK450-2 HK450T-2
HK520-1 HK520-2 HK700-1