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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
Incorrect chaser geometry
VS
Use correct chamfer angle
Incorrect drill geometry
VS
Use high helix drills
Incorrect drill geometry
VS
Use drill with larger point angle
Incorrect drill geometry
VS
Dub corners
Incorrect drill geometry
VS
Use radial lap or four facet drill
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