History
TONE×Transformation
It began with curiosity…
A century of pride built on deep inquiry.
We dedicate ourselves to social development and contribution by delving into the specialized field of drilling technology, starting from the manufacturing of drilling equipment parts. Since our founding in 1917, the spirit of “Tone,” the pioneer of drilling, remains deeply ingrained within us through changing times.
1917
1940
IFounding
Origin & Aspiration
1917
Iwaji Shioda rebuilt the Shioda Store and began selling
parts for pneumatic drills and ship fittings. This marked the origin of Tone.
1926
Developed the hand-feed drilling machine.
becoming Japan’s first fully domestic manufacturer of drilling rigs.
1937
Establishment of “Tone Boring Co., Ltd.”
1940
1960
IIGrowth
Domestic Production & Quality Establishment
1949
Developed Japan’s first Oil-Feed Type High-Speed Rotary drilling Machine.
1960
1980
IIIDevelopment
Establishment of a New Construction Method
1960
Received the industry’s first JIS Factory Certification.
Developed TBM and TEL type boring machines.
1965
Developed the BH Method, leading to increased recognition as a foundation piling method.
1967
Set Japan’s deepest core drilling record of 2,703 m in Iyo-Mishima City
1981
Excavated 2,150m in the pilot drilling for the Seikan Tunnel.
1980
2000
IVChallenge
Large-Scale Projects & Environmental Technology
1986
Developed the Rotary multi-horizontal cutter diaphragm wall trencher, EM-Type “Electro Mill.”
1990
EMX-320 adopted for the Akashi Kaikyo Bridge construction project.
1991
EMX-320 adopted for the Kawasaki Man-made Island construction project of the Tokyo Bay Aqua-Line.
2000
VInheritance and the Future
Passing on a Century of Craftsmanship to the Next Generation
2000
Developed the Vibratory-Rotary Drill EP-Type for soil contamination surveys (Eco Probe Series).
2002
Technical partnership with Sonic Corporation (Canada)
2002
Manufacturing of the Vibratory-Rotary High-Speed Drilling Rig SD-Type (Sonic Drill Series).
2005
Establishment of Toa-Tone Boring Co., Ltd.
2017