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With Holer 2.0 (Niten Zero), you can excavate clay layers and sand layers. Here’s what makes it different from the original Holer! - You can continue excavating even when transitioning from silt layers to sand layers (no bentonite needed). - It has a function to suppress wall collapse. ＼The usage is the same as the previous Holer／ We have received positive feedback from actual users! I have been using Holer for many years, and the stability of the hole walls has improved, which is great. Of course, there are no issues with core sampling, penetration tests, or permeability tests, and since the usage is the same, I switched to Holer 2.0. (Kansai/Geological contractor)

The current thrust construction involves many challenging tasks such as gravel layers, sharp curves, and long-distance thrusting, which can lead to a rapid increase in thrust power that is difficult to manage with conventional lubricants alone. Therefore, in challenging construction sites where an increase in thrust power is a concern, the combination of lubricants and a manicure agent is expected to help maintain low thrust and reduce the risk of crack formation. Concrete pipe manicure agent 2 is a type of lubricating agent applied to the surface of concrete structures in thrust construction and caisson construction. When used in conjunction with lubricants, it reduces the friction between the structure and the surrounding ground. For more details, please visit our website.