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Spot Face Bit

4K views 6 replies 4 participants last post by  von 
#1 ·
Anyone know where I can get an economical 1/2" spot face bit? Need it to spot face gasket surfaces for the needle seat of Q jet carbs (soft metal).
 
#2 ·
Von,
What size would the pilot diameter need to be? Spot face cutters (also known as counterbores) use a pilot stub in the hole in order to cut a true face. See tool on far right in pic below.
I can make one up when I return to work. Also, any radius on the edge of the spot face? Often there is...

 
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