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TungBore-Mini Boring Toolholders Improve Chip Evacuation

Tungaloy has released boring toolholders for its TungBore-Mini line. The company says these toolholders maximize chip evacuation for small-diameter boring contexts.

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A press photo of Tungaloy's TungBore-Mini boring bar, with a digital cutaway showing the interior shape of the the boring toolholder and a pop-out showing one of the unique XOMU inserts

Tungaloy has expanded the multifunctional turning and boring capabilities of its TungBore-Mini line with boring toolholders that accommodate its unique XOMU inserts.

The company says its toolholders’ designs ensure secure ID machining processes. The design provides significant clearance between the tool and the hole surface to improve the evacuation of chips generated during boring or ID turning of small diameter bores.

Tungaloy’s angled screw fixation method employs an engaged screw that not only presses the insert against its primary bottom support, but also pulls the insert into the pocket wall. This design enables the use of a longer screw, providing strong insert retention and process security.

TungBore-Mini is a multifunctional drilling and turning tool line that integrates the capabilities of drilling, OD and ID turning tools. The geometry of its unique XOMU insert incorporates a large inclination angle on the cutting edge, producing lighter cutting than the standard ISO positive turning inserts typically used for ID turning or boring operations. TungBore-Mini’s insert and pocket also have a dovetail interlocking design that the company says provides better insert clamping and stability than standard screw-down insert clamping, enhancing process security during various applications.

Tungaloy has released eight variations of its boring toolholders for TungBore-Mini. These toolholders are available for minimum bore diameters of either 10 mm or 14 mm, with either a steel or a carbide shank.

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