File from inside to outside of cutter. Place file against beveled cutting surface of teeth 20 to 45 deg with saw. Sharpen all left hand cutters on one side of chain then move to the other side and file all the right hand cutters. Height between cutting teeth and depth gauge is between 0.020 in to 0.030 in.
Manufacturer: NICHOLSON Model Number: 02144N UPC: 037103021441
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