247MD MICROMETER BALL ATTACHME

For measuring wall thickness of tubing, split and full bearings, sleeves and other parts with rounded surfaces

• Easily applied by snapping on to end of either anvil or spindle, thus permitting two attachments to be used together
• Balls are hardened and move freely in the retainer, insuring positive contact with anvil and spindle
• The diameters, 0.200 or 5mm, of each ball used must be subtracted from the micrometer reading