Semroc Centering Rings 1/4 inch thick Plywood 38mm to T-4.0(2pk) SEM-CR-38mm-4.0-1/4P
ID= 1.64"
OD= 3.896"
Thickness = 0.25" lite plywood
Made in the USA
Warranty for 1 year from manufacturer defects
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Centering Rings
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