Park Tool 799 Reaming Cutter

The 799 Reaming Cutter is specifically engineered for IS47 headset lower bearings. It is not compatible with other headset standards, so ensure your frame requires this specific dimension before use.

While it is built to the high durability standards required for professional shop use, it is also an excellent choice for dedicated home builders who want to ensure precise tolerances when installing high-end components.

Using this tool ensures the head tube is perfectly sized to the IS47 specification. This eliminates play in the headset, which results in smoother, more reliable steering performance and prevents premature bearing wear.

Yes, the 799 is a cutter head that typically requires a compatible Park Tool handle or reaming system to operate effectively. Please check your existing Park Tool setup to ensure you have the necessary driver or handle to mount this cutter.

It is constructed from high-quality steel designed to withstand the rigors of frequent use in a professional workshop. With proper maintenance and use, it will provide consistent, precise results over a long service life.