£82.44

Flex-Hone Brush Research FLEX-HONE Cylinder Hone, GBD Series, Silicon Carbide Abrasive, 3-1/2" (89 mm) Diameter, 240 Grit Size

Grey, GBD31224

Price data checked 1 day ago

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About as cheap as it gets. The only time it was cheaper was 1 month ago.

£82 today · all-time low £82 (May 2026) · usually £82

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Price History & Forecast

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Last 90 days • 90 data points

Historical
Generating forecast...
£103.62 £79.77 £84.98 £90.18 £95.38 £100.58 £105.79 23 March 2026 14 April 2026 06 May 2026 28 May 2026 20 June 2026

Price Distribution

Price distribution over 90 days • 9 price levels

Days at Price
Current Price
37 days · current 5 days 11 days 18 days 2 days 2 days 2 days 11 days 2 days 0 9 19 28 37 £82 £93 £94 £97 £98 £99 £100 £102 £104 Days at Price

Price Analysis

Most common price: £82 (37 days, 41.1%)

Price range: £82 - £104

Price levels: 9 different prices over 90 days

Description

The Flex-Hone® tool was originally created by Brush Research Manufacturing to deglaze cylinder walls in automotive applications. Brush Research embraced the benefits of a plateau finish and pioneered the concept of plateau honing culminating in the introduction of the Flex-Hone tool in 1972. The Flex-Hone has gained many nicknames over the years and including ball hone, ball style hone, flexihone, dingleberry hone, bead brush, glaze breaker and glaze buster. Flexible honing with the Flex-Hone tool produces an oil holding cross hatch pattern and a true plateau finish free of cut, torn and folded metal. Any type or size of cylinder can benefit from the Flex-Hone®. These abrasive bead style brushes are produced in standard diameters from 4mm to 36 inches. Nine abrasive types are offered including silicon carbide, aluminum oxide, boron carbide and diamond allowing the tool to be tailored to finish any base material. A choice of 11 different grit selections are available for precise control of finish parameters. The elimination of peaks results in rapid ring seating, better oil control, reduced seepage in hydraulic and pneumatic applications and provides better seal performance and longer seal life. Successful applications include firearm chambers, shotgun barrels, musical instruments, combustion chambers, air compressors, pumps, valve bodies, valve guides, brake cylinders, wheel cylinders and the list goes on and on. Flex-Hone® tools are also very effective for deburring cross drilled holes, port radiusing and edge blending. Because of its unique construction, the Flex-Hone is self-centering, self-aligning, and self-compensating for wear so it does not require an elaborate set-up or special training. Deburring can be effectively automated and combined in the machining process to allow a complete cylinder finish in one operation or it can be employed as a secondary operation with equal results.

Key Features

Flexible abrasive cylinder hone for surface finishing and cross hole deburring

Self-centering, self-aligning, self-compensating for wear

Use by hand or in CNC equipment

Order by actual bore size, tool produced oversized

Sizes from 4mm to 36 inches

Product Specifications

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