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The 647 is an M47 x 1.0 threaded tap designed for use with the BTS-1 Bottom Bracket Tapping Set to tap T47 bottom bracket shells. CHOOSE WHICH SIDE YOU NEED: The 647R is Right hand threaded used on the non-drive side (left side) of the bike The 647L is Left hand threaded used on the drive side (right side) of the bike NOTE: Always use cutting fluid such as Park Tool CF-2 when machining.
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🇺🇸 Ship from USA · On Agora since 2026
$336.88