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  • Brush Research FLEX-HONE Cylinder Hone, GBD Series, Silicon Carbide Abrasive
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by BRUBT

Brush Research FLEX-HONE Cylinder Hone, GBD Series, Silicon Carbide Abrasive

Available in multiple versions

8 customer reviews

Price: $30.97 - $198.81
Sale: Lower price available on select options
Product Specifications
Brand Name BRUBT
Grit Material Type silicon_carbide
Manufacturer Grade Heavy Duty
Manufacturer Series Number GBD
Shank Type Round
UNSPSC Code 31191500

Flex-Hone GBD-series abrasive bead style brushes for block cylinders or liners have globe-shap... Read full product description



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Fits Hole Size Size Grit Type Overall Length Shank Diameter Max Rotational Speed Part Number Part Number Price Quantity
   
3 inches 3" 120 13.5 inches 0.310 inches 800 rpm GBD30012 B002XUL1I0
$54.51
+ $9.98 Shipping
3 inches 3" 180 13.5 inches 0.310 inches 800 rpm GBD30018 B002XUL1IA
In Stock (4)
$47.19
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3 inches 3" 240 13.5 inches 0.310 inches 800 rpm GBD30024 B002XUL1IK
In Stock (4)
$50.03
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3.25 inches 3-1/4" 120 13.5 inches 0.310 inches 800 rpm GBD31412 B002XUL1JO
In Stock (6)
$48.68
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3.25 inches 3-1/4" 180 13.5 inches 0.310 inches 800 rpm GBD31418 B002XUL1JY
In Stock (4)
$48.69
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3.25 inches 3-1/4" 240 13.5 inches 0.310 inches 800 rpm GBD31424 B002XUL1K8
In Stock (1)
$42.87
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3.5 inches 3-1/2" 120 13.5 inches 0.310 inches 800 rpm GBD31212 B002XUL1IU
In Stock (2)
$50.15
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3.5 inches 3-1/2" 180 13.5 inches 0.310 inches 800 rpm GBD31218 B002XUL1J4
$55.01
+ $0.00 Shipping
3.5 inches 3-1/2" 240 13.5 inches 0.310 inches 800 rpm GBD31224 B002XUL1JE
In Stock (9)
$52.68
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3.75 inches 3-3/4" 120 13.5 inches 0.310 inches 700 rpm GBD33412 B002XUL1KS
$30.97
+ $9.37 Shipping
3.75 inches 3-3/4" 180 13.5 inches 0.310 inches 700 rpm GBD33418 B002XUL1L2
In Stock (3)
$46.12
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3.75 inches 3-3/4" 240 13.5 inches 0.310 inches 700 rpm GBD33424 B002XUL1LC
In Stock (5)
$56.99
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4 inches 4" 120 13.5 inches 0.310 inches 600 rpm GBD40012 B002XUL1LM
In Stock (8)
$55.09
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4 inches 4" 180 13.5 inches 0.310 inches 600 rpm GBD40018 B002XUL1LW
In Stock (11)
$52.41
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4 inches 4" 240 13.5 inches 0.310 inches 600 rpm GBD40024 B002XUL1M6
In Stock (10)
$63.93
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4.25 inches 4-1/4" 120 13.5 inches 0.310 inches 600 rpm GBD41412 B002XUL1NA
In Stock (5)
$61.14
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4.25 inches 4-1/4" 180 13.5 inches 0.310 inches 600 rpm GBD41418 B002XUL1NK
In Stock (10)
$58.95
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4.25 inches 4-1/4" 240 13.5 inches 0.310 inches 600 rpm GBD41424 B002XUL1NU
In Stock (3)
$71.67
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4.5 inches 4-1/2" 120 13.5 inches 0.310 inches 600 rpm GBD41212 B002XUL1MG
In Stock (1)
$64.73
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4.5 inches 4-1/2" 180 13.5 inches 0.310 inches 600 rpm GBD41218 B002XUL1MQ
In Stock (4)
$60.93
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Product Features

  • Self-centering, self-aligning, and self-compensating for tool wear, to reduce set-up time and costs and the need for special operator training
  • A soft cutting action to create a plateau finish through a low-temperature abrading process that exposes undisturbed base metal, to help produce a long-wearing surface
  • Grit size ranges from 120 to 320; higher grit numbers are finer, to help create a smooth surface finish
  • Order by actual bore size as the tool is produced oversized
  • Silicon carbide is more aggressive and cuts faster than aluminum oxide

Product Details

  • Shipping Information: View shipping rates and policies
  • Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B005ANHZ3M
  • Average Customer Review: 5.0 out of 5 stars  See all reviews (8 customer reviews)
  • Product Warranty: For warranty information about this product, please click here

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Product Description

Flex-Hone GBD-series abrasive bead style brushes for block cylinders or liners have globe-shaped abrasive points on an independent suspension for self-centering, self-aligning to the bore, and self-compensating for wear. This reduces set-up time and costs and the need for special operator training, as well as ensuring precise control of finish parameters. The resilient, flexible honing tool has a soft cutting action to create a plateau finish, where surface irregularities are reduced, while retaining a cross-hatch suitable for oil retention; the plateau finish increases the bearing area of the surface. Order by actual bore size as the tool is produced oversized.

Using the Flex-Hone low-temperature abrading process exposes undisturbed base metal, to help produce a long-wearing surface by removing cut, torn, and folded metal. The final surface of the metal part is optically smooth and has significantly reduced fragmented, amorphous, or smeared metal from previous operations. Cylinder hones are suitable for use deglazing, surface finishing, and deburring on cylinders, as well as cross hole deburring, port radiusing, and edge blending on items such as firearm chambers, musical instruments, combustion chambers, air compressors, pumps, valve bodies, valve guides, and brake cylinders. Use by hand or in NC/CNC equipment. NC-style tools can be used on both the older Numerical Control (NC) machines, which are programmed using physical media such as magnetic tape, and the newer CNC (Computer Numerical Control) machines, which are programmed using computers.

Abrasives are used for a variety of applications from shaping a part to fine finishing, depending on the grit size. Low grit numbers like 40 are coarse and are used for removing excess material and shaping a part. High grit numbers like 400 are fine and help to create a smooth surface finish. Silicon carbide is a sharp, aggressive grain that offers high penetration, fast cutting, and high material removal even under light pressure. It is commonly used with softer materials like brass, plastics, and rubber, and abrasive materials like glass and enamel, but can wear out faster than aluminum oxide when used on wood.

Brush Research Manufacturing Co., headquartered in Los Angeles, manufactures tools in the United States, and has been in operation since 1958. The company specializes in ball hone abrasives and industrial brushes for honing, a type of precision surface finishing. Brush Research meets ISO 9000 certification for quality.


Customer Questions & Answers

Customer Reviews

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Most Helpful Customer Reviews

3 of 3 people found the following review helpful By cj little on August 17, 2011
Shank Diameter: 0.310Part Number: GBD31218Max Rotational Speed: 800Size: 3-1/2"Fits Hole Size: 3.5Grit Type: 180Overall Length: 13.5 Verified Purchase
I used this hone on a BMW M20 rebuild out of a mid-80's E30. The hone worked perfectly.

I first used the hone with an old 9.6V Makita cordless drill that, sadly, didn't make enough torque to get the job done right. I went out and bought a 6.5 amp Porter Cable 1/2" chuck drill and it cleaned up the cylinders perfectly.

Note: if the hone starts to bind a bit, do your best to _not_ stop the drill from spinning. I learned (the hard way) that if the hone stops, and you (in your infinite wisdom, like myself) try to reverse the hone out, the metal "braids" that hold the hone balls in place will unravel. You'll spend more time than you car too putting the hone back together again (with or without all the king's men).

Even though there is still life in the first hone I used, I ordered another one just to have on hand. That's how much I liked this hone.
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1 of 1 people found the following review helpful By J. Robb on November 1, 2014
Shank Diameter: 0.310Part Number: GBD31224Max Rotational Speed: 800Size: 3-1/2"Fits Hole Size: 3.5Grit Type: 240Overall Length: 13.5 Verified Purchase
I have a 2005 Honda CRV that was burning one quart of oil per tank of gas. YES you did read that correctly. Car was abused before I got it, but now I have to fix it. Pulled the engine apart and found scoring on the #4 cylinder wall and a damaged piston. Replaced all 4 pistons, rings, and rod bearings. Took this hone to all the cylinder walls with a little "extra" in #4. All the bores came out factory perfect, except #4 which I would give a 8 out of 10. You could still see some vertical lines but it was 95% better than before. Hondas stance is do not hone, just install rings, and if you can catch a scratch with your fingernail, the block needs replacement. Well I wasn't replacing my block, so this was the next best thing. Put it all back together and the engine runs perfect. Car does not burn a drop of oil and the oil is still golden. It would be black from blowby within 500 miles before. Very pleased! and highly recommended.
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1 of 1 people found the following review helpful By COPIER USER on October 9, 2014
Shank Diameter: 0.310Part Number: GBD41424Max Rotational Speed: 600Size: 4-1/4"Fits Hole Size: 4.25Grit Type: 240Overall Length: 13.5 Verified Purchase
bought for customer says he's happy
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1 of 1 people found the following review helpful By atom on August 20, 2014
Shank Diameter: 0.420Part Number: GBD71212Max Rotational Speed: 600Size: 7-1/2"Fits Hole Size: 7.5Grit Type: 120Overall Length: 17.5 Verified Purchase
Great Deal!!! Fast Service!!!
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