Big Daishowa Seiki Co Ltd, Japan
Big Daishowa Seiki Co Ltd, a family owned group since 1967 is the world’s largest Tool holders manufacturing company with 900 employees worldwide. Big has its own subsidiaries & Regional offices in China, Switzerland, Germany, USA and Thailand.
The product portfolio is 100% made in Japan and Switzerland and comprises more than 20,000 precision products which adhere to the highest quality standards.
A trendsetter in precision, performance, innovation and service, BIG DAISHOWA is proud of its in-house production of digital displays and direct electronic measuring systems for digital precision boring heads to ensure absolute setting accuracy and eliminates operating errors.
Tool Holder

- Mega chuck series
- Mega er grip
- Ra holder
- Mold chuck
- New Hi-power milling chuck
- New baby chuck
- Hydraulic chuck
- Shrink chuck
- Gold stub holder
Boring

- CK boring system
- Smart damper (CK boring head)
Tapping

- Mega synchro Tapping Holder
- Auto tapper type B/R
- Drill tapper
- Synchronized tap hotder STC
- Auto tapper type A
- Auto tapper type E
Angle Head / Speed Increaser

- Angle head series
- Air turbine spindle
- High spindle GTG
- High spindle GTX
General Tool Holder

- Face mill arbor fmh
- Face mill arbor fma
- Face mill arbor fmc
- Side cutter arbor
- Side lock drill holder
- Side lock endmill holder
- Smart damper type fih
- Face mill arbor fmb
- Jacobs taper arbor
- Morse taper holder
- Side lock holder type sie
- Super keyless chuck
Peripherals

- Snap tool
- Bari cut cofa
- C-cutter
- R-cutter c-cutter boy
- Automatic back spot facer
- Bari cut
- C-cutter mini
- Center boy
- BF-cutter
- Reverser
Measuring Device

- Cutting edge detection
- Base master series
- Tool master
- Component references detection
- Point master series
- Accu center
Multitasking - Turning Tools

- Multitasking/turning tools
- Big capto C5/C6/C8
- HSK turning tooling
- BBT turning tooling
- Tool holder for NC lathe