8" x 5/32" Round Chainsaw File, 1 File per Card

• American pattern round chainsaw file
• Round shape, smooth cut
• Tighten tension on chain to firmly support cutters when filing
• File from inside to outside of cutter
• Place file against bevelled cutting surface of teeth 20° to 45° with saw
• Follow saw manufacturers' specifications
• Sharpen all left hand cutters on one side of chain
• Then move to the other side and file all the right hand cutters
• Check depth gauge height every 2 or 3 sharpenings
• Height between cutting teeth and depth gauge is between .020" to .030" 

Nicholson, Cooper Tools 1891 8" x 5/32" Round Chainsaw File, 1 File per Card CG01891