Super-Slim Toolholder Enables Deep Clearance

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Big Kaiser has released the HDC Straight Shank slim toolholder, designed to reach into confined areas.


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BIG KAISER will be exhibiting new technology at IMTS 2020 in Chicago this September.

Plan to meet up with their team or get registered here!

Big Kaiser has released the HDC Straight Shank toolholder. The slim design provides improved balance and concentricity in addition to enabling it to reach into confined areas. The holders can be clamped into other base holders to extend overall reach of the tool assembly and avoid the need for special tools. The slim nose design provides the necessary clearance for use with deep workpiece access, making it an effective solution for five-axis toolholding requirements.

Hydraulic chucks are suitable for machining processes that require high accuracy, including drills, reamers, ball mills, end mills, diamond reamers and grinding tools. They are effective for high-precision machining in automotive, aerospace, medical, and die and mold.

The tool holders are simple to use, with only one hex key wrench needed to clamp or loosen the cutting tool, making tool changes fast and easy without special equipment. It is designed to achieve 0.00012" total indicator reading at five times diameter. Optional straight collets can also increase the range and versatility of each size.


  • Don’t Forget The Drawbar

    The force that holds the toolholder in the machining center's spindle can weaken over time. If you haven't checked drawbar force in a while, this may be the weak link in your process.

  • Why Use Hydraulic Toolholders

    The book on hydraulic toolholders is that they are fussy to set, fragile to operate and expensive to buy. So why do many shops choose them over other holders that seem less demanding? This Chicago mold builder has good reasons for its choice.

  • The Knob Problem

    The retention knob is an unmistakably critical component of the machining process. However, the tightening of the knob itself can lead to the toolholder not seating securely in the machine. You may be losing tool life to knob tightness without even knowing it.

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