Rock Tools

Advanced Multi-Purpose System For Casing AdvancementULTRA MAXBIT

High speed and straight drilling in wide range of ground conditions

The ULTRA MAXBIT is used for simultaneous drilling and casing in unstable soft ground formations, and is also applicable for wide range of ground conditions such as sand, gravel and boulders and rock.

ULTRA MAXBIT

Easy lock system

Easy and speedy set-up

Easy lock system

Stiff connecting structure
between ring bit and casing shoe

Stiff connecting structure between ring bit and casing shoe

Pilot bit

Pilot bit

Overview Map

Overview Map

MD Hammer -
Down The Hole Hammer

  • ・ Greater depth
  • ・ Better penetration rate, hole straightness in greater depth
  • ・ Larger diameter holes