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Oversize Holes
 Misalignment, Vibration, Chatter
Runout of reamer chamfer
Poor hole preparation
Excessive stock removal
Reamer hitting bottom in blind hole
Dull reamer
Incorrect or damaged reamer
Undersize Holes
Excessive wear
Improper reamer size
Improperly sharpened reamer
Bellmouth Holes
Misalignment, Vibration, Chatter
Bent reamer shank
Excessive tool overhang
Poor Finish In Holes
Dull or damaged reamer
Incorrect reamer
Misalignment, Vibration, Chatter
Excessive stock removal
Poor machinability on material being removed
Tool marks
Oversize Holes-Solution
 Decrease cutting speed
Resharpen reamer
Check drill size
Realign work-piece and holder
Remove less material
Check reamer size
Undersize Holes-Solution
Replace reamer
Resharpen reamer
Check reamer size
Bellmouth Holes-Solution
Decrease reamer overhang
Resharpen reamer
Poor Finish In Holes-Solution
Remove less material
Resharpen reamer
Replace reamer
Adjust speeds
Use different type of reamer
Check material
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