Cylinder Hone 68-70mm Flexible Engine Bore Honing Tool

A flexible 120 grit cylinder hone for 68-70mm engine bores, used to refresh the internal cylinder surface during engine work. It is suited to light honing where the bore walls need the correct finish before reassembly, with a 6.5mm shaft for use at controlled running speeds.

Used for engine rebuilds, servicing and repair work, this type of honing tool is common in garages, workshops and home mechanic setups. When working on worn or glazed cylinder walls, it helps prepare the bore surface as part of maintenance before refitting internal engine parts. This flexible hone is also a practical option where a rigid hone may not suit the job or the bore condition as well.

The working diameter range is 68-70mm, so it is intended for matching engine cylinder sizes within that range. A 6.5mm shaft gives a clear drive size to work with, and the maximum running speed is 300rpm, which is worth sticking to for better control during use. The flexible honing action is intended for internal cylinder surface work rather than heavy cutting, making it more suitable for refreshing the bore finish during servicing or rebuild tasks. For regular engine maintenance, using the correct size hone helps keep the job straightforward and avoids using a tool that is too large or too small for the bore.

Cylinder hone specifications

• Working range: Suitable for engine cylinder bores from 68mm to 70mm.
• Shaft size: Fitted with a 6.5mm shaft.
• Maximum speed: Should be run at up to 300rpm.
• Design: Flexible 120 grit honing style for internal cylinder surface work.
• Application: Used for refreshing bore walls during engine servicing and rebuilds.

A practical choice for regular maintenance and repair work.