Thread: 6mm tap, US/standard drill bit size?
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Old 05-30-20 | 11:26 AM
  #21  
fietsbob
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From: NW,Oregon Coast

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Old trick my Dad a machinist , (& WW2 Vet), showed me,, hold the tap up and the twist drill ,

right size you see the valleys of the teeth in the tap behind the drill you are holding in front of it..
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