The 693 is a single replacement bottom bracket tap in the Italian 36mm x 24 TPI standard. Fits the BTS-1 Bottom Bracket Tap Set. Two taps required for use. Both sides of the Italian standard are right hand threading.
Bottom Bracket Tapping & Facing Set
1.370" x 24 Right Hand Threaded English Tap
1.370" x 24 Left Hand Threaded English Tap
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