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Number of SSV's:

Heading 3

Number of Solutions:

Heading 3

Suspected Sources of Variations (SSV's)
Tool for pinpointing
Technical solutions
Incorrect drill geometry
VS
Use high helix drill
Incorrect drill geometry
VS
Decrease backrake angle
Incorrect drill point geometry
VS
Use radial lip drill
Incorrect drill point geometry
VS
Use subland drills
Incorrect feed rate
VS
Reduce feed rate
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