Toolholders

The Toolholder is the essential connection between the machining center and the cutting tool. The toolholder fits into and is secured by the machining center’s spindle, and in turn secures the cutting tool such as a drill or end mill by clamping onto its shank. The taper of the toolholder matches the toolholder interface of the particular spindle. Toolholder tapers are often conical, including CAT and BT taper specifications. A different kind of taper, HSK, is not tapered at all, but instead includes a variety of flanges for securely locking the toolholder in place. Toolholders use different mechanisms for clamping the tool including set screw, collet, hydraulic compression and shrink-fit.

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How AM Is Advancing into Cutting Tools: Photos from EMO

How AM Is Advancing into Cutting Tools: Photos from EMO

The design freedom of additive manufacturing delivers increased performance to cutting tools. At the world’s leading exposition for machine tools, I saw various examples of this.

Turret Toolblock Adapter Helps Shop Succeed with Quick-Change Toolholder

Finding itself challenged to take full advantage of two new Y-axis lathes, Anthony Machine found a solution in Kennametal’s Turret Adapted Clamping Units which, combined with the KM quick-change toolholder, have reduced cycle times and setups significantly and reliably.
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Seco's QC Toolholder Increases Swiss-Type Insert Indexing Efficiency

Seco’s modular QC (Quick-Change) toolholders for Swiss-type machining is designed to enable fast, easy and repeatable insert indexing and tool changes.



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