Universal High-Precision Collet Chuck

WIDIA has introduced a universal, high-precision collet chuck designed for use in multiple applications (milling, drilling, reaming and tapping) while maintaining runout accuracies of 0.003 mm (0.0001") at 3xD.

According to the company, chuck features include:

• Added versatility due to the ability to continue using standard ER collets while upgrading to precision collets
• Thicker chuck walls and a stronger outer form for added rigidity and lower vibration for longer spindle and tool life
• Sealed-by-design precision collets (6 - 20 mm or 0.24" - 0.79") for enhanced coolant delivery and longer tool life
• Better and repeatable balancing, all contributing to higher accuracy.

"Aerospace, die/mold and many other industries regularly encounter high-strength, difficult-to-machine materials requiring high torques, feeds and forces," said a company spokesperson. "The danger of milling cutters being pulled out of the toolholder at these extreme forces has significantly increased. This is at least true for toolholders that offer precision clamping with good concentricity, such as shrink-fit. Such toolholders work with frictional locking, but their clamping force is often not sufficient for roughing."

In response, the new WIDIA universal precision collet is available with Safe-Lock pull-out protection from Haimer. Helical grooves are ground into the shank of the milling tool that, together with the respective pin drivers in the chuck, prevent the tool from spinning or being pulled out of the holder altogether under extreme machining conditions. The helical path of the Safe-Lock grooves also allows for adjusting tool length, meaning tools can be reground and pre-set as usual.

For more information contact:

WIDIA Products Group

1662 MacMillan Park Drive

Fort Mill, SC 29707

800-979-4342

w-na.service@widia.com

www.widia.com