The Power Milling Chuck delivers 5 micron runout accuracy at 3xD. Through direct clamping technology, one Seco chuck can hold plain cylindrical tool diameters of 20 mm, 32 mm, 0.75" and 1.25", and Weldon shank tools of 20 mm and 0.75". With the use of reduction sleeves, a single chuck can also handle shank diameters in cylindrical, Weldon and Whistle Notch tools from 6 mm up to 25 mm, and from 0.25" up to 1.00".

The chucks accommodate milling tools – for roughing and finishing operations – as well as drilling and tapping tools.

Seco Tools Power Milling Chucks are said to offer machine shops advantages over standard collet chucks. For instance, a nut and needle-bearing design produces superior clamping power with minimum tightening force/torque requirements, compared with the steel-to-steel contact on collet chucks. Furthermore, optional coolant-stop screws enable Power Milling Chucks to engage through-tool coolant, while the chucks require no additional expense for ancillary equipment such as heating or hydraulic units.

Seco Power Milling Chucks are available for HSK-A, Seco-Capto, DIN, BT and BT taper-face, and ANSI and ANSI taper-face spindle interfaces. Each chuck includes a sleeve extractor, stop screw (with DIN, BT and ANSI interfaces) and operating instructions.