5/32"(4 mm) for electric chainsaw, 3/8 chain. 3/16"(4.8 mm) for small oil chain saw wheel, 325 chain, large 3/8 chain. 7/32"(5.5 mm) for saw wheel saw wheel such as big oil chain, 404 chain. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
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