Mitutoyo 4" Knife Edge Straight Edge Series 528-102

Features

• The test edge is approximately .004" in thickness, a cross section of which has radius to provide a straight ine contact with the work surface.
• Straightness is ±.00005".
• For ease of inspection, the blade is dyed in black, and the upper edge is covered with a grip plate.
• The acute angle is 30 degrees.
• Comes with a protective cover.