A straight bit traces a visible circle at no load instead of rotating on a stable centerline.

A straight bit traces a visible circle at no load instead of 1. Remove the pack, clean the chuck bore, and inspect the first bit for bend or

• FM-18: Fm 6 1

• root cause analysis
• tools needed
• step-by-step repair procedure
• diagrams
• exploded views
• post-repair checks

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