UNC Thread Chaser Rethreading Tap Set 1/4" 5/16" 3/8" 7/16" 1/2" 9/16" USA Reviewhttp://tinyurl.com/oyy2b4r UNC Thread Chaser Rethreading Tap Set 1/4" 5/16" 3/8" 7/16" 1/2" 9/16" USA MADE IN THE U.S.A.COMPACT SIZE, CONVENIENT HEX DRIVELESS EXPENSIVE THAN THREAD CUTTING TAPSALL COMMON SIZES
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