A Quality Straight Edge
A quality straight edge is invaluable for determining the flatness of your stones. Ordinary rulers are not effective to measure the true flatness of sharpening stones. Rulers are not really designed for the job and are often flexible, which makes it almost impossible to determine flatness.
The Starrett 385 Series Steel Straight Edit with Bevel Edge is precision ground and nicely finished to rigid Starrett standards. It is unexcelled for checking surfaces for straightness. Its thickness and design permit it to retain shape and accuracy, but still be portable and easy to handle.
A Quick Check for Flatness
It is important to keep your sharpening stones flat to get the best results. But how do you determine the flatness of your stones? One of the best ways is to use a quality straight edge. Hold the straight edge against the stone, then hold them both up to a light. If you see light between them, then the stone is not flat.
Alternatively, you can set the straight edge against the stone and then attempt to slip a piece of paper between them. If the paper slides freely between stone and straight edge, then the stone is not flat.
Specs:
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Length (in):12"
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Length (mm):300mm
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Thickness (in):11/64"
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Thickness (mm):4.4mm
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Width (in):1-13/32"
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Style: Beveled 1 edge, not graduated
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Accuracy (in):+/- .0002" per foot
Made in the USA.
Starrett 12" Straight Edge, One Beveled Edge
