Brush Research Mfg. BC4M170200CD Flexible Cylinder Hone

Product Description

The BRUSH RESEARCH MFG. BC4M170200CD is a flexible cylinder hone designed for precision bore finishing in small-diameter applications. It uses a diamond abrasive at extra fine grade (170 grit) to produce consistent surface finishes in hard and difficult-to-machine materials including carbide, ceramic, and hardened tool steel. The tool has a maximum bore diameter of 0.157 inches and an overall length of 6 inches, making it suited for fine finishing work in tight bores where rigid tooling cannot provide the necessary flex and contact. Machinists and toolroom technicians use this hone for final bore preparation, deburring, and controlled material removal in precision components.

This hone is intended for use in small-bore finishing operations on carbide, ceramic, and hardened tool steel workpieces. It is well suited to production and toolroom environments where precise bore geometry and surface finish are required on hard materials. The abrasive length is 0.75 inches, which concentrates the cutting action within a short, controlled zone. Maximum rated speed is 1,200 RPM, keeping operation within a range appropriate for handheld or machine-driven honing in precision applications.

Key Features

• Diamond abrasive at extra fine grade (170 grit) for fine finishing on hard materials
• Maximum bore diameter of 0.157 inches for small-bore applications
• Abrasive length of 0.75 inches provides focused cutting contact
• Compatible with carbide, ceramic, and hardened tool steel workpieces
• Maximum operating speed of 1,200 RPM
• Shank diameter of 0.055 inches for use with compatible chucks and drivers

Compatibility

Designed for use on carbide, ceramic, and hardened tool steel bores with a maximum bore diameter of 0.157 inches. Verify spindle chuck compatibility with the 0.055-inch shank diameter before use.

Installation Notes

This tool is installed and operated by machinists or toolroom technicians using a compatible drill press, lathe, or handheld driver. Confirm the spindle or chuck can securely grip the 0.055-inch shank before operation. Do not exceed the rated maximum speed of 1,200 RPM. Use an appropriate honing fluid or coolant as recommended for diamond abrasives on hard materials to prolong abrasive life and improve finish quality.