What Big Daishowa does

Big Daishowa (legal entity 大昭和精機株式会社, operating brand "BIG DAISHOWA") is a Japanese precision tooling manufacturer founded in 1967 and headquartered in Higashi-osaka, Japan. The company designs, manufactures, and sells precision tool clamping systems (including hydraulic chucks such as Hydro Chuck UP, shrink-fit chucks, collet chucks such as New Baby Chuck, milling chucks such as Mega Double Power Chuck, and Mega Perfect Grip with pull-out prevention), boring tools (KAISER boring line), tool presetters (STP Futura series), non-contact tool measurement systems (the proprietary Dyna ZERO System combining Dyna ZERO Vision CMOS-camera stroboscopic measurement with Dyna ZERO Chuck runout adjustment), angle heads, speed-increasing spindles, and related cutting tools and accessories. Products are compatible with multiple spindle interface standards including BIG-PLUS (BBT), HSK-A/E/F, BIG CAPTO, and ST, and are sold via a multilingual web presence and CAD data downloads (DXF/STEP) for registered users.

The company serves the global CNC machining and metal-cutting manufacturing industry across horizontal use cases including drilling, tapping, milling, boring, deep cavity machining, precision mold and die work, and difficult-to-cut materials such as titanium and Inconel. Its go-to-market is enterprise B2B field sales with separate domestic-Japan and overseas inquiry channels, supported by a group structure spanning BIG DAISHOWA Corporation, BIG DAISHOWA Japan, BIG DAISHOWA International, and BIG DAISHOWA Europe GmbH (whose German headquarters completed construction in 2026-07). The revenue model is direct hardware sales of precision tooling products; pricing is not publicly disclosed.

Differentiation rests on sub-micron runout accuracy (1μm or less at the cutting edge in multiple product lines), dynamic measurement at actual machining speeds via the Dyna ZERO System, high-rigidity clamping enabling heavy cutting without chatter, and a comprehensive ecosystem spanning every step from spindle cleaning and tool presetting through clamping and active measurement. The Dyna ZERO System received the 48th Invention Award from the Japan Institute of Invention and Innovation and Nikkan Kogyo Shimbun. Marketing relies on trade-show participation, YouTube product videos, X (Twitter), and registered CAD-data downloads.

Name

Big Daishowa

Legal name

大昭和精機株式会社

Website

https://big-daishowa.co.jp

Company type

Private

Founded year

1967

Operating status

Operating

Short description

Big Daishowa is a Japanese precision tooling manufacturer (founded 1967) that designs and sells high-precision chucks, tool holders, non-contact measurement systems (Dyna ZERO), and boring tools for CNC machining centers serving global metal-cutting manufacturers through direct B2B field sales and regional subsidiaries.

Ownership category

akta.pro rank

Product category

Precision Tooling / Industrial Tool Holders

NAICS

Cutting Tool and Machine Tool Accessory Manufacturing (333515)

SIC

Machine Tools, Metal Cutting Types (3541)

akta.pro primary industry

Metal Cutting Tools, Tooling & Workholding (Cutters, Inserts, Chucks, Fixtures) (IMAHADAB)

akta.pro secondary industry

Metrology, Inspection & Machine Tool Accessories (CMMs, Probing, Gauging) (IMAHADAK)

Keywords

• Precision tool holders
• CNC machining tools
• Hydraulic chucks
• Tool measurement systems
• Cutting tool accessories

Headquarters

HQ city

Higashi-osaka

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Operations, Personnel, Technology or R&D, Supply Chain, Marketing or Sales, Infrastructure

Revenue model

1. Precision Tooling Products: Manufactures and sells precision tool holders, chucks, tool presetters, cutting tools, and measuring instruments for CNC machining centers. Products include hydraulic chucks, ER collet chucks, milling chucks, boring tools, angle heads, and tool setting equipment. Revenue from direct product sales to manufacturing customers.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Big Daishowa manufactures and sells precision tool holders, chucks (hydraulic, collet, milling, shrink-fit), boring tools, tappers, angle heads, speed-increasing spindles, tool presetters, and non-contact tool measuring instruments for CNC machining centers. The product portfolio targets precision metal-cutting operations such as drilling, milling, boring, tapping, and precision mold machining, with proprietary clamping and measurement technologies achieving 1μm or better runout precision. Products are compatible with multiple spindle interface standards including BBT (BIG PLUS), HSK-A/E/F, BIG CAPTO, and ST, and are supported by catalog distribution and CAD data downloads.

Product overview

Big Daishowa is a precision machining tool manufacturer offering a comprehensive portfolio of tool holding systems, cutting tools, and measuring instruments. The product lineup centers on chucks (including hydraulic, shrink fit, collet, and milling chucks), tool presetters and measuring systems (Dynam Zero Vision system, Base Master, Point Master series), angle heads, speed-increasing spindles, and peripheral equipment. Products are compatible with multiple spindle interface standards including BBT (BIG PLUS), HSK-A/E/F, BIG CAPTO, and ST. The company also provides CAD data downloads in DXF and STEP formats for registered users.

Differentiator

Problem solved

Functional benefit

Products and services

• Dyna ZERO Vision
• Dyna ZERO Chuck
• Hydro Chuck UP
• Tool Presetter STP Futura
• Dyna Test
• New Baby Chuck
• Mega Double Power Chuck
• Mega Perfect Grip
• Angle Head

Quantifiable outcome

• Blade tip runout accuracy of 1μm or less achieved with Dyna ZERO system
• +3 more outcomes

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

Four partnerships are on record, tiered core.

• BIG DAISHOWA Europe GmbHcoreOthers · 1 July 2026European headquarters completed construction in Germany. Represents the company's expansion of European market presence.
• BIG DAISHOWA株式会社 (BIG DAISHOWA Corporation)coreOthersParent company within the BIG DAISHOWA corporate group. 大昭和精機株式会社 is a member company under the BIG DAISHOWA group umbrella.
• BIG DAISHOWA Japan株式会社coreOthersJapan-focused subsidiary company within the BIG DAISHOWA group structure.
• BIG DAISHOWA International株式会社coreOthersInternational business subsidiary handling overseas sales and distribution outside of Europe.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Kennametal: US-based global tooling manufacturer producing metal-cutting inserts, tool holders, and wear-resistant components. A broad incumbent whose precision tool holder offerings directly compete with Big Daishowa in the same end markets.
• Sandvik Coromant: Division of Sandvik AB, one of the world's largest metal-cutting tooling suppliers, offering a full range of inserts, tool holders, and digital tooling solutions. Overlaps Big Daishowa's holder and boring categories but at vastly greater scale and global footprint.
• Iscar (IMC): Israeli-headquartered tooling maker owned by Berkshire Hathaway's IMC group, producing a comprehensive metal-cutting portfolio. A broad incumbent that competes with Big Daishowa across holders and inserts in global aerospace and automotive accounts.

Direct peers

• OSG Corporation: Japanese manufacturer of taps, end mills, drills, and tool holders with a global sales network. Closest Japan-headquartered peer to Big Daishowa in product breadth and customer overlap across Asian precision machining markets.
• MAPAL: German precision tooling specialist producing boring tools, reamers, and PCD tooling, with comparable niche positioning in precision machining. Overlaps directly with Big Daishowa's KAISER boring line and high-precision holding systems.
• Nachi-Fujikoshi (NT Tool): Japanese industrial conglomerate whose NT Tool division produces precision cutting tools, taps, and drills. Comparable product portfolio and home-market positioning to Big Daishowa, with similar focus on automotive and industrial machinery customers.
• Schunk: German clamping and toolholding manufacturer with a comprehensive line of precision tool holders, shrink-fit and hydraulic chucks, and presetters. Comparable product range and target customer base to Big Daishowa, especially across European markets.
• Guhring: German precision cutting tool and tool holder manufacturer offering rotary tooling, taps, and end mills. Comparable as a mid-size European precision tooling specialist selling into similar aerospace, automotive, and general machining customers.
• Haimer: German precision tool holding specialist offering shrink-fit, hydraulic, and milling chucks plus tool presetters. Directly comparable to Big Daishowa in product category, customer base (precision CNC machinists), and focus on sub-micron runout accuracy.

Regional players

• BIG Kaiser: US-based precision tooling company focused on high-precision boring and tool holding systems, closely related to the BIG DAISHOWA group. Comparable product categories and target customers, but serving primarily the North American market where Big Daishowa itself has limited direct presence.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/big_daishowa
• YouTubeyoutube.com/channel/UCz0MnPVNyr_zR8kMNct5SKg

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Big Daishowa