The Frankford Arsenal Case Neck Ball Micrometer is the perfect tool to measure neck wall thickness. Inconsistent neck wall thickness will cause seated bullets to be misaligned with the bore. To measure this thickness a reloader needs an accurate tool designed specifically for this task. The Frankford Arsenal Case Neck Ball Micrometer is the tool to fill this need.
Type: Ball Vernier Micrometer Function: Measure Case Neck Thickness Accuracy: .0001" Range: 0-1" Warranty: 1-Year against manufacturing defects
Notes: Ball Diameter is .185"
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