Honing tool set flexible, 3 pcs., K60/80, 8–12–20mm, 6.3mm (1/4") drive

This flexible honing tool set includes three brushes with working diameters of 8mm, 12mm, and 20mm, offering precise surface preparation before piston ring installation. Designed for use in automotive, aerospace, hydraulics, as well as plumbing and heating systems.

Key features:

• Grain sizes: K60 and K80

• Grain type: Silicon carbide (SiC) – robust, long-lasting abrasive

• Drive system: 6.3mm (1/4") external hex drive

• Brush type: Self-centering internal brushes with flexible silicon carbide ball trim

• Application: Ideal for edge breaking, surface finishing, and honing work

• Performance: Produces uniformly honed surfaces with high contact ratio; does not increase cylinder diameter, only reshapes the surface

• Benefit: Honing marks improve oil adhesion, ensuring better lubrication and sealing

Usage:

• Compatible with hand drills and stationary machines

• Grinding oil use is strongly recommended

Specifications: