Cylinder Hone 87-89mm Flexible Engine Bore Honing Tool 7.8mm Shaft

A flexible cylinder hone for 87-89mm bores, used to refresh internal surfaces and prepare them for reassembly. It is suited to controlled bore finishing where an even hone is needed without being overly aggressive, making it a practical choice for the correct size range.

Used across engine rebuilds, garage work and general mechanical repairs, this honing tool helps when cylinder walls or similar internal surfaces need cleaning up before parts go back together. It suits buyers carrying out servicing, refurbishment or workshop maintenance where matching the hone to the bore size matters, rather than using something that is only close. For regular internal honing work, a properly sized tool can make preparation more straightforward and consistent.

The working diameter is 87-89mm, so it is intended for bores within that range. A 7.8mm shaft allows fitment to a compatible drive setup, while the stated maximum speed of 300rpm is there to be followed in use. The 120 grit abrasive finish is suited to freshening the surface ready for the next stage of the job. For repeated workshop use, keeping within the recommended speed helps this flexible hone work as intended and avoids unnecessary wear during bore preparation.

Cylinder hone specifications

• Working diameter: Sized for 87-89mm bores.
• Abrasive finish: 120 grit for internal surface freshening and bore prep.
• Shaft size: 7.8mm shaft for use with a compatible drive setup.
• Speed limit: Maximum recommended drive speed is 300rpm.
• Application: Used for cylinder walls and similar internal honing work during rebuild or repair jobs.

A straightforward option when you need the right hone for a specific bore size.