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Precision measuring instruments and equipment help make your work flow faster, more accurate, and more efficient.

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.

Win a Base Master

Enter for a chance to win a Base Master from BIG DAISHOWA.

Angle Heads & Speed Increasers

Optimize your spindle with BIG DAISHOWA's Angle Heads & Speed Increasers. Harness your machine's current capabilities by adding an Angle Head.

Tool Assembly / Disassembly

Our tool assembly/disassembly products make the most challenging maneuvers and adjustments much easier, saving time and stress during tooling setup.

Collet Chucks

BIG DAISHOWA’s CNC collet chucks have a guaranteed runout at the collet nose of less than 0.003 mm at 4xD, and are available for all machine tool spindles.

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.

BIG-PLUS® BT Hi-Jet Holder Coolant Inducer

Coolant Inducers

Coolant Inducers introduce coolant capabilities to machine tools without coolant-through spindles. Learn more about these unique tools.

Collets

BIG DAISHOWA offers a variety of tool collets, available in 0.1mm diameter increments to suit all cutting tool shanks with maximum accuracy.

Fixed 90°

Angle Heads increase productivity by easily changing the angle of the cutter while utilizing the original workpiece setup.

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.

CNC Tool Holders

CNC Tool holders are the interface between the machine spindle and the cutting tool. BIG DAISHOWA offers a wide variety of shanks common to the market.

BIG CAPTO

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