BIG KAISER Introduces Premium ER Collet Chuck System

Hoffman Estates, IL – BIG KAISER has introduced MEGA ER Grip, a new premium ER collet chuck system featuring the best runout accuracy in the industry: .00012" (3 microns) at 5xD.

The MEGA ER Grip was designed to outperform all other ER systems in the four most crucial areas of tool holder performance: clamping force, concentricity, rigidity and balance at high spindle speeds. These factors, combined with the systems reliable and stable runout accuracy, amount to significant long-term savings. A major design improvement increases the contact length of the internal taper of the chuck body, reducing the undesired overhang of the collet for significant performance increases.

"Our tests have shown that MEGA ER Grip performs exceedingly well in these four areas," says Jack Burley, BIG KAISER vice president of sales and engineering. "The result is cost and down-time reduction thanks to longer tool life. Customers will also see improvements in machining quality and shorter production times because of reduced cutting vibrations."

All components of the MEGA ER Grip system are manufactured with BIG Daishowa's high-precision production technology; high rigidity body, precision notch-free nut and AA grade ERC collet. ERC collets are in accordance with DIN6499 and ISO15488 standards and feature a clamping range of Ø.075"-.787". By utilizing the MEGA ER Perfect Seal, coolant can be delivered through-tool or to the cutter periphery. Tapped holes around the body periphery permit precision balancing, and the system is only available with dual-contact BIG-PLUS® (CAT), HSK and BIG CAPTO interfaces to allow for maximum rigidity.

BIG KAISER Precision Tooling is a leader in high precision tooling systems and solutions. With brands including Kaiser, BIG Daishowa, 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.

For more information about the MEGA ER Grip, contact BIG KAISER, Hoffman Estates, IL 224-770-2999, e-mail or visit

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