Tooling & Workholding

Exploring the: Toolholders Zone
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Chip Control

I discovered that chip control actually means controlling chips as they are being cut off of a workpiece.


Faster Centerline Drilling with Continuous Pecks

One of the most difficult small-part turning operations does not involve a turning tool at all, but instead involves a drill.


The Importance of Float During Micro Reaming

Micro reamers require a floating holder to compensate for any machine positioning inaccuracies.


Quick Change for Screw Machines

New quick-change dovetail form toolholders bring lean operations at a lean price.


How Do You Get The Cutting Parameters Right For Small End Mills?

A reader recently asked about speed, feed rate and depth of cut when using small tools in steel.


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 ...


Measuring Taper For Toolholders And Spindle Applications

Companies concerned about strict quality requirements regularly check toolholder tapers for wear or inaccuracy because these conditions can jeopardize the results of a critical operation. However, a shop can check tapers quickly and reliably with ai...


Swiss-Type Machines: More Than Just A Lathe

CNC Swiss-Type machines have more capability built in than ever before. Many of these capabilites can be accessed using attachments that increase the throughput of the machine tool, improve the quality of the work coming off the machine and reduce o...


Detecting and Correcting Unbalance in Toolholders for High Speed Machining

This white paper from American Hofmann Corporation examines the relationship between unbalance and toolholders used in high speed machining centers. The paper looks at sources of unbalance, effects of unbalance, correcting the unbalance and determin...


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.


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