The DTH-type HD are particularly suitable for drilling in extremely hard rock, such as granite and gneiss.

This type are available in the following sizes:

Type:HD 24

Shank type:

Length without bit(mm):876

Thread type:T42

Outside diameter(mm):70

Wrench flat(mm):55

Weight(kg):19

Working pressure(bar):6-25

Air consumption L/s

Type:HD34

Shank type:DHD3.5/COP34

Length without bit(mm):982

Thread type:2 3/8“ API REG

Outside diameter(mm):84

Wrench flat(mm):65

Weight(kg):32

Working pressure(bar):6-25

Air consumption L/s

Type:HD44

Shank type:DHD340A/COP44/SD4

Length without bit(mm):1059

Thread type:2 3/8“ API REG

Outside diameter(mm):100

Wrench flat(mm):

Weight(kg):49

Working pressure(bar):6-25

Air consumption L/s

Type:HD54

Shank type:DHD350R/COP54/SD5

Length without bit(mm):1143

Thread type:2 3/8“ API REG / 3 ½“ API REG

Outside diameter(mm):125,5

Wrench flat(mm):75

Weight(kg):84

Working pressure(bar):6-25

Air consumption L/s

Type:HD64

Shank type:DHD360/COP64/SD6

Length without bit(mm):1312

Thread type:3 ½“ API REG

Outside diameter(mm):142

Wrench flat(mm):95

Weight(kg):124

Working pressure(bar):6-25

Air consumption L/s

Type:HD 84

Shank type:DHD380/COP84

Length without bit(mm):1458

Thread type: 4 ½“ API REG

Outside diameter(mm):160

Wrench flat(mm):140

Weight(kg):155

Working pressure(bar):6-25

Air consumption L/s

More information also in our DTH HD leaflet for download

Type HD