About Us

Representative Greeting

As a manufacturer of gundrilling machines, we have been improving and developing our gundrilling machines and studying our processing technology while listening to the voices of our customers.
As a result of these efforts for technological innovation in deep hole drilling, we have established a deep hole drilling technology that is unparalleled in the world, such as the deep hole drilling of 1 mm in diameter × 400 mm in depth. With the deep hole drilling technology cultivated in Japan, we will promote global development, including the promotion of overseas machine sales projects, and contribute to the improvement of manufacturing technologies around the world.

Representative Director Hidenori Inada

company overview

Company name Hi-Tack Corporation

Head office and factory 716-41 Nishikumado, Numazu City, Shizuoka Prefecture

Representative name Representative Director Hidenori Inada

Capital stock 69 million yen

establishment August 2008

Our Business

Manufacture and sale of gundrilling machinesContracted machining operations for medical equipment parts, aircraft parts, automobile-related parts, machine tool parts, various sleeve pins, core pins, mold cooling holes, etc. ( gundrilling, honing, external machining )


300 fledgling small and medium-sized businesses ( 2018)
Regional Future Index Companies ( 2018)
Excellence Award, 6th Shizugin Entrepreneurship Awards
Shizuoka Industrial Promotion Foundation Chairman's Award

Main customers

Ltd., NK Works Co., Ltd., M-TEC Corporation, Okazaki Corporation, Kanematsu KGK Corporation, Kyoritsu Machinery Co.
Ltd., SUZUKI PRECION Corporation, Star Micronics Co.
Nissho Corporation, Nippon Bearing Corporation, Beyonds Corporation, Meiyo Electric Company, Ltd.
(Alphabetical order)

Company History


Established Toyo Hightac to manufacture and sell gundrilling machines.


Head office and factory completed in Matsunaga, Numazu City, Shizuoka Prefecture.


Development of a hollow servo spindle featuring high rotational accuracy (Enables deep hole drilling of difficult-to-cut materials, which was not possible with conventional machines)

Development of a new high-precision small-diameter gundrilling machine enables deep hole drilling from Φ0.5


Started outer diameter machining business. Introduced various outer diameter processing machines to promote and expand the business.
(Introduced NC lathes, machining centers, wire-cut electric discharge machines, image dimension measuring machines, etc.)
ISO 9001:2015 certification acquired
Completion of the second factory (currently the main factory) in Nishikumado, Numazu City, Shizuoka Prefecture.
Registered as a medical device manufacturer


Automatic regrinding equipment dedicated to small-diameter gun drills and φ1mm x 400L machining
Developed a new type of gundrilling machine that enables deep hole drilling.
Selected as one of the 300 small and medium-sized enterprises (SMEs) and companies indexed for the future of the region
Year 2020 

Achieved a depth of 60L by machining the world's smallest gun drill φ0.5
New factory completed in Nishikumado, Numazu City, Shizuoka Prefecture.
Moved head office functions.