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Number of SSV's:

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Number of Solutions:

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Suspected Sources of Variations (SSV's)
Tool for pinpointing
Technical solutions
Tool material
VS
Use harder grade of carbide
Tool nose radius more
VS
Change tool geometry ; Decrease nose radius
Tool not on centerline
OBS
Check and correct
Tool not on centre
OBS
Ensure correct tool setup
Tool not resharpened at regular intervals
OBS
Establish resharpening frequency and adhere
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