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Based on a cylindrical connection with radial locking screw, the world-famous modular precision tool system BIG KAISER has continuously been improved over the years, and has adapted to customer’s needs and the increases in machine tool performance.

BIG-PLUS Spindle System

BIG-PLUS tool holders are supported on the flange face and taper providing excellent rigidity. It is interchangeable with existing machines and tool holders.

Who We Are

BIG DAISHOWA is an industrial tooling company located in Hoffman Estates, IL. We are a global supplier of precision metal cutting tools and machine tool accessories.

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Customer Service

Get the help you need with our customer service resources. From sales and marketing team contact information to chat support, request forms, and more.

BIG KAISER Boring Tool App

A smartphone and tablet app to enhance the user-experience when assembling and running cutting tools while providing extremely precise cutting data.

HSK Tooling System

HSK is a German acronym that means "hollow taper shank" and serves as the hollow taper interface that connects to HSK machines using flange contact.

Why BIG DAISHOWA

BIG DAISHOWA manufactures high-performance, high-tolerance tooling with a personal commitment to helping customers with truly efficient solutions.

Tool Presetters

SPERONI Tool Presetters measure the cutting edges of your tools to assure they precisely match job specifications and are ready to be used in the machine.

Tooling Cleaners

Taper and bore cleaners come in many styles and sizes to match all types of tooling.

Price and Stock Check

Price and Stock Check is designed to streamline your search for product information. Look up inventory by catalog number or description.

Locations

There are locations in North & South America, Europe, and Asia.

BIG CAPTO

The BIG CAPTO tooling system is a dual contact modular turning and rotating tool holder that strengthens the performance of machine tools.

Turning Tools

Stationary tooling and set up accessories for multi-axis turn mills, small Swiss Type lathes and horizontal lathes with turrets.