SKU: 15965710769

Brush Research Manufacturing GBD51212 FLEX-HONE Cylinder Hone, GBD Series, Silicon Carbide Abrasive, 5-1/2" (140 mm) Diameter, 120 Grit Size

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Description

Brush Research Manufacturing GBD51212 FLEX-HONE Cylinder Hone, GBD Series, Silicon Carbide Abrasive, 5-1/2" (140 mm) Diameter, 120 Grit SizeThe 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

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.

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

Specifications

Package Dimensions : 19 x 6.1 x 6.1 inches; 1.31 Pounds

Item model number : GBD51212

Date First Available : November 9, 2004

Manufacturer : BRUSH RESEARCH MFG CO

ASIN : B002XUL1OY

Best Sellers Rank : #13,412 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #5 in Flex Hones

Customer Reviews : 4.8 out of 5 stars 330 ratings

Brand Name : BRUBT

Coarseness Rating : Coarse

Ean : 0843469151438 , 0013519059797

Fits Hole Size : 5.25 inches

Grit Type : 120

Included Components : Brush Research Mfg Co Gbd 5-1/2 (140Mm) 120Sc Flex-Hone Gbd51212

Is Assembly Required : false

Item Diameter : 5.25 inches

Item Weight : 1.31 pounds

Length : 17.5 inches

Maximum Rotational Speed : 600 rpm

Measurement System : Inch

Model Number : GBD51212

Number of Items : 1

Part Number : GBD51212

Shank Diameter : 0.350 inches

Size : 5-1/2"

UNSPSC Code : 27000000

UPC : 013519059797 , 843469151438

Warranty Description : Manufacturers Warranty

Grit Material : Silicon Carbide

Manufacturer Grade : Heavy Duty

Manufacturer Series Number : GBD

Material : silicon carbide

Shank Type : Round

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 15965710769

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4.6 ★★★★★
Based on 7 reviews
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Product Reviews
D
Verified Purchase
David D.k
Grantham, US
★★★★★ 5
Finally a mount for my truck!
2015 Toyota Tacoma Prerunner. I've tried many different mounts - ones that stuck to the dash, stuck to the windshield, one that mounted in the cup holder in the console. They all were bad in their own way. This Offroam mount finally got it right. Easy installation - and when I say SOLID hold I mean it. No movement, no rattle, do creaking sound, etc, etc. I was very skeptical of the one-handed use getting the phone in and out but it's really a genius design. Seriously - I just got it, so can't really speak to longevity yet. Judging by the design and quality of parts, I'll say it will be the last mount I ever purchase for this truck. Pay the extra, and be happy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
S
Verified Purchase
SamsMommy
Cuba, US
★★★★★ 5
Great Quality, Perfect Fit
2015 Tacoma. This fit perfectly and is solid. Last/Different one I had on another vehicle broke one of my vent dividers. That can't happen with this design. Worth the money. Would absolutely recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026
D
Verified Purchase
David
Dallas, US
★★★★★ 5
Well build and functions nicely
The products build quality is excellent; in fact, its far superior to this product's competitor, "Batdiary". This mount stays locked in place when i use one hand to mount my phone or remove it. Also, the internal mechanism is much nicer than the Batdiary one and feels like it has tighter and more accurate machining tolerances which should prevent it from rattling like its competitor's did after a couple weeks use. I highly recommend this product, it is worth the high price tag!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 6, 2025
H
Verified Purchase
Hawapino
Draper, US
★★★★★ 4
Buy once, cry once
This Offroam phone mount is not the cheapest option, but it is easily the most functional and sturdy one available, especially for second-generation Toyota Tacomas. I went through several plastic phone mounts before this and should have bought this one from the start to save both money and frustration. Installation was very simple, and it is even easier to use day to day. I like that this mount uses adjustable arms to grip the phone rather than relying on MagSafe. It keeps my phone secure even on rough terrain and offers plenty of flexibility for positioning the phone exactly where you want it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 25, 2026
J
Verified Purchase
Jason Lefebvre
Bozeman, US
★★★★★ 5
Top notch mount with high build quality
I love it when I take a chance and spend some extra money hoping for a quality product - and it actually pans out. I bought this for my 2nd gen Toyota Tacoma (2014). The install was fast. Instructions were clear. The mount is ROCK solid and has two points of articulation so I can position my phone well. I couldn't ask for a better product. The price I paid was a little steep for a mount, but if you demand quality then look no further.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 21, 2025

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