Cleaned up edges of W-606C top and bottom on Scotchbrite wheel. Pulled tape off left spar. Deburred all holes in spar. Cleaned lightening hole edges using Scotchbrite wheel in hand grinder. Used fine tooth file on edges of spar and then ran softer Scotchbrite wheel in hand grinder across spar flange edges. Used end of Scotchbrite wheel in hand grinder to clean up creases around holes dimpled in doublers.
