DescriptionProfessional engine cylinder honing machine, mainly made of durable metal materials, practical and with good working performance . It can be applied to the polishing work of engine cylinders.Paired with your electric drill, run low speeds moving up and down engine cylinder sides.Features-Color:As Shown -Material:Metal -Size:21.30X8.00X8.00cm/8.37X3.14X3.14in -Diameter range: 19-64mm /1-1/8inch- Efficient and practical, clean cylinder wall and help remove carbon deposits and rust. - Spring adjusting nut increases tension and locks brake caliper hone arms in place. - It can well help your engine cylinder to polish and clean, so that it has better work efficiency. - This brake caliper honing tool has wide of application, suit for small car, trucks, tractors, and diesel cylinders. - With excellent flexibility, convenient and practical, flexible shaft, professional and practical.