Tungaloy Expands Its DirectTung-Jet System for the Inch Market

Iwaki, January 2019 — Tungaloy is expanding its TungTurn-Jet solutions with an inch-based line of toolholders to further attract Swiss lathe users predominantly in the Americas regions. The new holders are offered with the DirectTung-Jet technology that enables high-pressure internal coolant to be supplied directly through the tool post — without the use of an external coolant tube.

TungTurn-Jet delivers a high-pressure jet of coolant through the toolholder directly to the optimal area near the cutting point of the insert. Unlike traditional flood coolant supplies, TungTurn-Jet facilitates effective chip evacuation in machining difficult-to-cut materials by lifting the chip away from the insert rake face with a high pressure jet of top coolant. With the other jet of coolant from the bottom outlet hitting on the insert clearance face, TungTurn-Jet not only improves chip control but reduces wear on the flank and rake face of the insert, allowing greater parameters to be applied for higher efficiency and productivity.

The new inch-based toolholder line of TungTurn-Jet is designed for the use in the latest Swiss lathe models that are compatible with DirectTung-Jet coolant supply technology. The DirectTung-Jet system enables a plug and play coolant connection: the toolholder is simply bolted on the tool post to supply high-pressure internal coolant directly through the tool post. This eliminates the hassles of external coolant subassembly, while also alleviating the concern for chip bird-nesting, which can occur with the use of the external tubes. The DirectTung-Jet system makes the tool holder compatible with the latest Swiss lathe models as well as suitable for conventional models, which require a coolant tube subassembly.

The new inch holders are available for front-turning, grooving, threading, and parting-off to cover a wide range of Swiss lathe applications.

  • At a Glance
    • Plug and play coolant supply technology. Internal coolant is supplied directly through the tool post without the use of external coolant subassembly
    • High pressure coolant jets create small fragmented chips for efficient evacuation
    • Coolant jets are directed to the optimal positions close to the cutting edge where they are required for improved chip evacuation and wear resistance of the insert


  • Total of 41 items to be added