A correct-looking bit will not enter fully or can be pulled out after the collar is released.

A correct-looking bit will not enter fully or can be pulled 1. Remove the battery and inspect the bit shank for the correct clean 1/4-in. hex

• FM-15: Fm 3 1

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

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