The Earth holds great potential feasibility of development.

Toa-Tone Boring Co., Ltd. challenges steadily the development of underground space and resources for the future of mankind.

Since its founding in 1917, Toa-Tone Boring Co., Ltd. has been exclusively concerned with the business of underground development as a leading firm in the fields.

Toa-Tone Boring Co., Ltd. contributes to prospecting environmental and urban development fields by providing innovative and advanced drilling machinery equipment and drilling technique.

Entering the 21st century, Toa-Tone Boring Co., Ltd. desires to act as the driving force for creation of affluent future through the utilization of its engineering technology taking a bold leap over accumulated know-how for the past nine decades.