Dynabrade 51078 Bearing 
Dynabrade 58040 11" Dia. Two-Hand Gear-Driven Sander, Non-Vacuum, .45 HP, 900 RPM, Hook-Face Pad 
Insize 7101-100A, DIGITAL HORIZONTAL SCALE, 4″/100mm, 6928640321504
$101.38
Resolution: .0005″/0.01mm.
Buttons: on/off, zero, in/mm
Automatic power off, move the digital unit to turn on power.
Battery CR2032, data output
Made of stainless steel
Supplied with bracket to be mounted on the back.
Optional accessory: data output cable
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