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CT55 and CT67 for underground

CT55 and CT67 for underground

Hole diameter CT55 (new ST58)
89.0 - 127.0 mm (3.5 - 5.0 in.)
Hole diameter CT67 (new ST68)
102.0 - 152.0 mm (4.0 - 6.0 in.)
Reaming bits
152 - 204 mm

The curved thread system really makes a difference in long hole drilling. With CT55 and CT67 you get a predictable performance without interruptions, as well as trouble-free coupling and uncoupling at lower cost per meter.

Features

Product specifications

Hole diameter CT55 (new ST58)
89.0 - 127.0 mm (3.5 - 5.0 in.)
Hole diameter CT67 (new ST68)
102.0 - 152.0 mm (4.0 - 6.0 in.)
Reaming bits
152 - 204 mm
Tube diameter CT55
76 mm
Tube diameter CT67
87 mm

Curved thread innovation

Packed with power

Innovated to cut costs. Uncoupling problems and sudden transversal breakages cost lots of time and are entirely unpredictable. The CT55 and CT67 top hammer tool system is built to last and deliver without interruptions. Check out other features, benefits and values.

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