• Range: 6" To 16.125"
• The Ammco 8500 series Drum Micrometers are famous for their durability, just like our brake lathes.
• The 8500 series are off set to allow for measuring both on the bench or while the drum is still mounted on the lathe.
• All three models can be owner calibrated in the 9582 checking fixture sold seperately.
• The 8500 can be converted to a truck drum micrometer with the addition of an 8539 (908539) extension shaft
• This changes the range to 6" - 26"
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