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

Round Chucks

Round chucks come in diameters from Ø 90 - 176 mm (Ø 3.543" - 6.929") and body styles to fit a wide variety of applications.

Torque Wrenches

Torque wrenches are essential to achieving precise tightening forces.

Tap Holders

MEGA Synchro Tap Holders are available in multiple lengths and for multiple tap standards to accommodate whatever your application calls for.

Welcome to the BIG DAISHOWA Group

BIG DAISHOWA is a well-recognized global tooling manufacturer for the metal cutting industry with facilities in North America, Europe and Asia.

Downloads

We provide DXF drawings, a cutting data calculator and drill size conversions. You can also download all our product catalog PDFs or watch our product videos.

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.

Chamfering

Indexable cutters with up to 4 cutting edges for fast, efficient production of radius edges.

Chamfer Mills

Chamfer Mills with a complete range of diameters capable of creating a 90° chamfer in most common and exotic workpiece materials.

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California Proposition 65 warning label.

California Proposition 65 Notification Letter

With respect to Prop65, our hardmetal and tooling/workholding products contain cobalt and nickel which are known to the State of California to cause cancer.

REACH Compliance Request

BIG DAISHOWA Inc. does not offer EU Reach certification. Our company in the United States supplies and is responsible for the North American market only.

Partners

BIG DAISHOWA is the North & Central American distribution arm for BIG DAISHOWA, Speroni, Innotool, Sphinx, Tekusa and mptec.

Machine Maintenance

Utilize these machine maintenance accessories in addition to regularly scheduled maintenance to save time, money, and frustration.

Wrenches

Our MEGA Wrenches feature a one-way clutch system with a roller bearing and ratchet function for the firm and easy tightening of BIG BIG DAISHOWA slot-free nuts.