The World’s Smallest Precision Finish Boring Head

The EWN 04-7 Series from BIG Kaiser is ideal for use on micro-milling machines with high-speed spindles such as HSK-E25, E32 or E40.

BIG Kaiser Precision Tooling Inc. (Hoffman Estates, IL) added the EWN 04–7 Series — the smallest precision finish boring head on the market — for use on micro-milling machines with high-speed spindles such as HSK-E25, E32 or E40.

The head features a high precision adjustment accuracy of .0005 in/Ø and .0001in/Ø through the use of a Vernier scale, and a diameter range of Ø.016 in — .276 in (Ø.04 mm — 7 mm). The product is available with the Kaiser KA1 modular connection, or with a Ø10mm straight shank, and can accept boring bars with Ø4mm shanks. The head features a maximum through-tool coolant pressure of 300 psi.

While this boring head is accustomed to micro-machining applications, it can also solve problems for companies that need a tool able to travel into deep cavities for ultra-small diameter boring. High rigidity and secure clamping of the boring bar makes it a good product for any micro boring application.

The EWN 04–7 Series adds to the variety and versatility of our micro-machining program,” says Jack Burley, the vice president of sales and engineering at BIG Kaiser. “This helps us give customers the best possible solutions for any small-diameter boring needs.”

BIG Kaiser is a leader in high precision tooling systems and solutions. With brands including BIG Daishowa, Kaiser, Speroni, Unilock, Sphinx and more, BIG Kaiser’s line is focused on extreme accuracy and repeatability. BIG Kaiser’s mission is to support North American manufacturers with products that are designed and manufactured to a superior standard. Guaranteed.


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