[Spits] Cutting spot welds

[Daniel Parrott]

I used a Harbor Freight grinder with a 4 in diameter grinding wheel.  Ground
them down them flush!



-----Original Message-----
From: spitfires-bounces at autox.team.net
[mailto:spitfires-bounces at autox.team.net] On Behalf Of Doug Braun
Sent: Thursday, August 02, 2012 10:38 AM
To: Shop-Talk; Spitfire Group
Subject: [Spits] Cutting spot welds

Hello,

I'm replacing the lower rear valence panel on my Spit, because it was bashed
up years ago, and crudely repaired with bondo.  I've been using a cheap HF
spot-weld drill bit to separate the spot welds, and that is going faster
than I expected, especially since the Spitfire sheet metal is so thin.

But does anybody know the best way to grind down those little discs of metal
that the drill leaves behind?  (My drill bit is like a little hole-cutter.)
I need to grind them flush, without cutting too deeply into the second,
remaining panel.

BTW, I'll probably spring for a HF electric spot-welder to attach the new
panel.

Thanks again,
Doug
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