Skip to content

PLATEAU HONING AFTER RIDGED HONING

BRM pioneered the concept of a plateau finish and is a strong supporter of the benefits that a proper cross hatch finish can provide. Learn how the FLEX-HONE® is the ideal solution to your plateau honing after ridged honing.

Overview

Rigid honing is a precision type of finishing process that uses a rigidly supported abrasive tool used to remove material from the surface of a bore or cylinder. It is typically used when high accuracy in bore geometry, size control, and surface finish is required such as in engine blocks, hydraulic cylinders, and aerospace components. The process yields a crosshatched surface pattern, improved roundness and straightness, with tight tolerances. Rigid honing, however, can still result in residual surface peaks which can increase friction, wear or break-in time.

Plateau honing is an important subsequent operation that removes these surface peaks without changing the underlying bore geometry. By removing the peaks while retaining the valleys, plateau honing produces a flatter, more uniform surface that improves oil retention, reduces wear, and promotes longer component life. It enhances performance by reducing initial friction, shortening break-in periods, and helping to prevent scuffing or scoring.

can be used virtually any rotating spindle

Hand Drill
Drill Press
Robotic Cell
Machining Center

 AN INEXPENSIVE YET EFFECTIVE AND EASY-TO-USE TOOL TO ACCOMPLISH A PLATEAU FINISH 

Together, rigid honing and plateau honing provide a highly functional surface ideal for demanding applications where performance, longevity, and efficiency are critical. Rigid hones are effective for changing bore geometry while FLEX-HONE® tools accomplish an ideal crosshatch finish quickly and easily.

FLEX-HONE® Key Benefits for Plateau Honing: 

  • Removes Surface Peaks Without Altering Geometry: The FLEX-HONE® tool uses a flexible, self-centering abrasive action that selectively removes microscopic peaks while preserving bore size, roundness, and crosshatch pattern. 
  • Creates a Consistent Plateaued Finish: Produces a uniform, polished surface ideal for improved lubrication retention, reduced friction, and extended component life. 
  • Ideal for Hard-to-Reach Areas: Its ball-style design conforms to bore irregularities and reaches into blind holes and cross ports, where rigid tools may struggle. 
  • Reduces Break-In Time: The plateaued surface created by the FLEX-HONE® minimizes metal-to-metal contact during initial operation, helping engines and hydraulic systems reach optimal performance faster. 
  •  Extends Seal and Component Life: By producing a smooth surface with retained valleys for oil retention, the tool helps prevent scoring, scuffing, and premature wear. 
  • Easy to Use and Cost-Effective: Operates with standard hand drills or production equipment, requiring minimal setup, operator skill, or maintenance. 
  • Compatible with a Range of Materials: Available in a variety of abrasive types and grits to match material hardness, from soft metals to hardened steels. 

resources

Learn how BRM tools are being used to improve processes, cut costs and save time!

FLEX-HONE® Resource Guide 

The FLEX-HONE® Resource Guide teaches you how to select the right tool for your application. Have you ever had questions about tool diameter, grit selection, abrasive type or recommended RPMs? We go over all of this and more.  

download pdf
download pdf

The Necessity Of A Plateaued Cylinder Wall Finish 

A detailed presentation of several test run engines with performance results of lower blow-by, increased compression, less ring and cylinder wall wear with the FLEX-HONE® Process. 28 pages. 

download pdf
download pdf

FLEX-HONE®- Improving Piston Ring Performance 

Piston rings play a critical role to overall engine performance.  Learn how the FLEX-HONE® consistently provides the optimal surface to ensure peak performance and ring seating. 

download pdf
download pdf

How Can We Help

NOT SURE WHAT YOU NEED?

Send in your part and receive a full-service part evaluation, laboratory analysis and product recommendation.

Get Started

CUSTOMIZED BRUSHES

Didn't find the brush you need? No problem. BRM Technical Engineers will design a tool for your specific application requirements.

Get Started

GUARANTEED TEST ORDER PROGRAM

Our tools speak for themselves. For qualified production applications, no charge samples will be provided for testing.

Get Started

NEED ON-SITE SUPPORT?

Our network of manufacturing representatives work with you to discuss your application, deliver samples and optimizing setups.

Get Started

Have any questions?

For more than 65 years, BRM has been creating solutions to some of the toughest surface finishing challenges. We look forward to working with you

Contact Us
65+ years Experience
Made in the USA
8,000+ Solutions

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare