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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4.7 ★★★★★
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Product Reviews
L
Verified Purchase
L
West Palm Beach, US
★★★★★ 4
Good but left white cast on my skin
Size: 5 Fl Oz (Pack of 1)
Overall, I bought this because of the zinc oxide; it is very easy to use, no strong odor, non-sticky. However, it still left white cast on my face. (The intensity of the white cast is still lower compared to other more expensive brand.)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 22, 2025
C
Verified Purchase
Clifton
San Leandro, US
★★★★★ 5
Good lotion
Size: 5 Fl Oz (Pack of 1)
Good lotion. Goes on nice absorbs well great protection
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
P
Verified Purchase
Prz Lineth
Draper, US
★★★★★ 5
Producto bueno
Size: 5 Fl Oz (Pack of 1)
Honestly, I really liked it. It has a good texture, doesn’t feel heavy, and leaves a nice finish. I’ve been using it every day, and so far it has worked well for me
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
H
Verified Purchase
Hannah
Bozeman, US
★★★★★ 5
Non greasy, not much white cast compared to other mineral sunscreens
Size: 5 Fl Oz (Pack of 1)
The only one my 13 yr old will tolerate. Its the least greasy feeling of any mineral sunscreen we've tried. At 19% zinc oxide, I'm happy. Its also the least "white" cast of any we've tried. My Fitzpatrick III daughter is happy about that
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
R
Verified Purchase
remama
Birmingham, US
★★★★★ 3
Liked the old formula more :/ very drying
Size: 5 Fl Oz (Pack of 1), Size: 5 Fl Oz (Pack of 1)
We have used this for the longest time because me and my middle child have an allergy to chemical sunscreens. I remember last summer the formula was slightly more greasy but I preferred that. While I do like how protected my skin is (we haven’t burned at all even with the new formula, even after swimming for hours and not reapplying) it is extremely drying to where my skin looks like it’s cracking and feels very hard to wash off. Like I can still feel it on my skin after showering. May try a different one :/ super bummed! I feel like it is also hard to rub on skin because it absorbs so fast.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026

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