End Mill Holder, Tormach TTS, 1/4"

Quick change adapter for 1/4" shank end mills
Minimal clearance height for tool change
Repeatable tool positioning
Hardened and precision ground

Part Number: 3026
Weight: 0.65 lb

Price: $29.95

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Quick change Tormach 1/4" set screw tool holder for end mills and other milling tools.

Tormach screw holders are suitable for general milling operations and are intended to be used with end mills that have a Weldon shank (flat surface on shank). They can also be used with certain Silver & Deming style drill bits.

The tool holder has a set screw on one side and a balancing dimple on the other side. The balancing dimple reduces vibrations at speeds above 8000 RPM.

See Chris' Tips regarding centering of end mills when using a set screw holder.

Chris' Tips

Chris' Tips
Tool switching with the Tormach Tooling System (TTS) is extremely easy: Simply loosen the drawbar, slide out the current tool holder, then slip in the next and retighten. The unique geometry of the TTS tool holder ensures that, as the drawbar is tightened, the tool holder moves into an exact Z height while increasing rigidity. Each TTS holder has a shoulder that is undercut so it contacts the spindle itself, not the end of the collet. As the drawbar is tightened the collet will simultaneously squeeze the shank and be pulled upward into the spindle taper. This simultaneous action, grasping while moving up, pulls the tool holder tightly against the spindle face. The high-pressure contact between the shoulder of the tool holder and the spindle is the equivalent of a zero tolerance fit; the vertical location (Z-height) of the tool is exact. The initial placement, created by simply sliding the tool holder up until it stops, is normally within a few thousandths of an inch. The final location, after tightening the collet, is exact, highly repeatable, and not affected by the variable tension of the drawbar or wear on the collet.

Here is the complete Tormach Tooling System Catalog and the Tormach Tooling System Manual.

Here is an animated graphic showing how the Tormach Tooling System works.
Here is a picture showing how the Tormach Tooling System works.

Photos

"End Mill Holder