The Park Tool 647R is the M47 x 1.0 right-hand threaded tap for T47 bottom bracket shells. It is the dedicated replacement for the BTS-1 bottom bracket tapping and facing set and works on the non-drive side, that is the left side of the bike.
In T47 shells the left-side cup has a right-hand thread: if the thread is fouled with paint, oxidised or marked by a crooked installation, chasing it with the tap before fitting avoids forcing and lets the cup thread in correctly. During machining Park Tool always recommends a cutting fluid such as CF-2.
How to use the Park Tool 647R T47 tap
- Fits the BTS-1 set, paired with the 647L left-hand tap for the drive side
- Chases the right-hand threads on the left side of T47 shells
- Prepares the frame to receive T47 threaded-cup bottom brackets
- Always use with cutting fluid
Why choose the Park Tool 647R
- M47 x 1.0 thread specific to the T47 standard
- Genuine Park Tool replacement part for the BTS-1 set
- Can be replaced individually when worn, without buying the set again
Together with the 647L, the Park Tool 647R right-hand T47 tap completes the BTS-1 for working on T47 frames in the workshop.
TECHNICAL SPECIFICATIONS
General
- Code: 647R
- Type: bottom bracket shell thread tap
- Side of use: non-drive side (left)
Dimensions
- Thread: M47 x 1.0 right-hand
Compatibility
- Standard: T47 bottom bracket shells
- Tool: Park Tool BTS-1 bottom bracket tapping and facing set
The Park Tool 647R is the M47 x 1.0 right-hand threaded tap for T47 bottom bracket shells. It is the dedicated replacement for the BTS-1 bottom bracket tapping and facing set and works on the non-drive side, that is the left side of the bike.
In T47 shells the left-side cup has a right-hand thread: if the thread is fouled with paint, oxidised or marked by a crooked installation, chasing it with the tap before fitting avoids forcing and lets the cup thread in correctly. During machining Park Tool always recommends a cutting fluid such as CF-2.
How to use the Park Tool 647R T47 tap
- Fits the BTS-1 set, paired with the 647L left-hand tap for the drive side
- Chases the right-hand threads on the left side of T47 shells
- Prepares the frame to receive T47 threaded-cup bottom brackets
- Always use with cutting fluid
Why choose the Park Tool 647R
- M47 x 1.0 thread specific to the T47 standard
- Genuine Park Tool replacement part for the BTS-1 set
- Can be replaced individually when worn, without buying the set again
Together with the 647L, the Park Tool 647R right-hand T47 tap completes the BTS-1 for working on T47 frames in the workshop.
TECHNICAL SPECIFICATIONS
General
- Code: 647R
- Type: bottom bracket shell thread tap
- Side of use: non-drive side (left)
Dimensions
- Thread: M47 x 1.0 right-hand
Compatibility
- Standard: T47 bottom bracket shells
- Tool: Park Tool BTS-1 bottom bracket tapping and facing set
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