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UNC UNF Ø Pitch (TPI) Drill Size (inch) Pitch (TPI) Drill Size (inch) #0 - - 80 3/64 #1 64 0.059 (#53) 72 0.059 (#53) #2 56 0.0
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1/4-20 UNC, 2-9/16" OAL, 0.2055" Drill Diam x 19/32" Drill Length, Combination Drill & Tap - 05452735 - MSC Industrial Supply
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