Fowler 74-150-020-0 EZ-Drum Brake Drum Gage

Features:

• 4" to 20" / 100 to 500 mm capacity
• Inch / Metric / Fraction Conversion
• 4" drum preset
• Zero set
• Hold function
• Preset measuring depth at 1" or 1.5"
• Resolution: 0.0005" / 0.01mm (fractions in 1/64" increments)
• Protected to IP54 specifications
• Beam has vernier scale to double check reading
• Thumblock
• Can be used to check some disc measurements
• Includes wooden case