Technical Information

Tunable Boring Bars
The Kennametal complete portfolio of Tunable Boring Bars helps prevent chatter
and other problems associated with an internal dampening package designed
for deep-hole boring applications.
Advantages
Optimal Rigidity
Eliminates vibration to improve surface
quality and tolerance.
Increased Productivity
Larger depth of cut and better chip removal
by up to 10:1 (steel) and 15:1 (carbide)
length-to-diameter ratio.
Relative Stability
10
9
8
7
6
5
4
3
2
1
TTS Tool:
max DOC with a benefit
of more than 500%
www.kennametal.com
Standard Tool:
max DOC on
stable conditions
Machining without Chatter or Vibration
Less noise exposure and improved results.
Tunable Damping Mechanism
To account for different vibration behavior,
bars can be tuned on the machine, and
tools can be adjusted.
TTS Tool — area of optimum application
Standard Tool — area of optimum application
4 5 6 7 8 9 10 11 12
Standard Tool L/D=4
Note: This chart illustrates how KM Tunable Boring Bars proivde greater stability than standard toolholders, even in larger tool length-to-diameter ratios.
Increased stablilty enables greater depth of cut.
Technical Information
Tunable Boring Bars
TTS Tool L/D=7
Increased stability allows for
greater depth of cut
M93
Technical Information