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

Available in multiple versions

4.6 out of 5 stars 69 customer reviews

Price: $8.09 - $109.28
Sale: Lower price available on select options
Product Specifications
Brand Name BRUBT
Grit Material Type silicon_carbide
Manufacturer Grade Standard Duty
Manufacturer Series Number BC
Shank Type Round
UNSPSC Code 31191500

Currently showing 1-20 of 154 Next »
ASIN
The Amazon Standard Item Number (ASIN) uniquely identifies the item in the Amazon catalog.
Fits Hole Size Size Grit Type Overall Length Shank Diameter Max Rotational Speed Part Number Price Quantity
   
B009I6RGZY   51MM         BC20032 SC
$37.99
+ $4.01 Shipping
B002XUL10I 0.157 inches 4 mm 180 6 inches 0.055 inches 1000 rpm BC4M18
$22.68
+ $6.86 Shipping
B002XUL10S 0.157 inches 4 mm 240 6 inches 0.055 inches 1000 rpm BC4M24
$18.84
B002XUL112 0.157 inches 4 mm 320 6 inches 0.055 inches 1000 rpm BC4M32
$18.17
B002XUL0ZO 0.177 inches 4.5 mm 180 6 inches 0.055 inches 1000 rpm BC45M18
$12.08
B002XUL0ZY 0.177 inches 4.5 mm 240 6 inches 0.055 inches 1000 rpm BC45M24
$15.30
+ $5.43 Shipping
B002XUL108 0.177 inches 4.5 mm 320 6 inches 0.055 inches 1000 rpm BC45M32
$22.89
B002XUL0XQ 0.1875 inches 3/16" 180 6 inches 0.073 inches 1000 rpm BC31618
$15.48
B002XUL0Y0 0.1875 inches 3/16" 240 6 inches 0.073 inches 1000 rpm BC31624
$18.25
B002XUL0YA 0.1875 inches 3/16" 320 6 inches 0.073 inches 1000 rpm BC31632
$20.89
B002XUL13U 0.197 inches 5 mm 120 8 inches 0.083 inches 1000 rpm BC5M12
$20.19
B002XUL144 0.197 inches 5 mm 180 8 inches 0.083 inches 1000 rpm BC5M18
$12.11
B002XUL14O 0.197 inches 5 mm 240 8 inches 0.083 inches 1000 rpm BC5M24
$17.67
B002XUL14Y 0.197 inches 5 mm 320 8 inches 0.083 inches 1000 rpm BC5M32
$17.03
B002XUL11C 0.217 inches 5.5 mm 120 8 inches 0.083 inches 1000 rpm BC55M12
$35.26
+ $7.01 Shipping
B002XUL11M 0.217 inches 5.5 mm 180 8 inches 0.083 inches 1000 rpm BC55M18
$22.36
B002XUL126 0.217 inches 5.5 mm 240 8 inches 0.083 inches 1000 rpm BC55M24
$12.08
B002XUL12G 0.217 inches 5.5 mm 320 8 inches 0.083 inches 1000 rpm BC55M32
$22.84
B002XUL16M 0.236 inches 6 mm 120 8 inches 0.112 inches 1000 rpm BC6M12
$12.21
B002XUL16W 0.236 inches 6 mm 180 8 inches 0.112 inches 1000 rpm BC6M18
$12.08
Currently showing 1-20 of 154 Next »
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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 Description

Flex-Hone BC-series abrasive bead style brushes for brake cylinders, hydraulics, and valve guides, 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.


Product Details

  • Shipping Information: View shipping rates and policies
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B005ANHXMU
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (69 customer reviews)
  • Product Warranty: For warranty information about this product, please click here

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Shank Diameter: 0.245Part Number: BC17832Max Rotational Speed: 800Size: 1-7/8"Fits Hole Size: 1.875Grit Type: 320Overall Length: 8 Verified Purchase
This worked great for honing my 1972 Honda CB350F cylinders. Easy for first timers and cleans up all of the dark spots where the piston rings were stuck and sat for decades. I used a hand drill but you can also use a drill press if you have one. One great tip is to have the drill on at a low speed while you slide the hone tool in and out very swift motion. This will give it the perfect 45° cross hatching, otherwise you may get a more acute angle of cross hatching. Don't forget to use lubrication as well, I used Marvel Mystery oil which worked great.
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Shank Diameter: 0.245Part Number: BC30024Max Rotational Speed: 700Size: 3"Fits Hole Size: 3Grit Type: 240Overall Length: 8 Verified Purchase
Used this tools to freshen up the cylinder walls on my '94 Metro XFI rebuild. This and the new piston rings will give this motor life for many more miles. I know that it works because I am rated at 53-56mpg in this car and I am currently getting 58.6mpg, and I am still breaking it in:) I know that I will be buying more of different sizes as new projects emerge. Thanks so much!
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Shank Diameter: 0.245Part Number: BC11412Max Rotational Speed: 800Size: 1-1/4"Fits Hole Size: 1.25Grit Type: 120Overall Length: 8 Verified Purchase
Watch the sizing - it is misleading, diameter is oversized by about 1/8" so if you need slightly over 1.25"(31.8mm) and you need to hone a 32mm cylinder , stick with the 1.25" don't buy the next size up.
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Shank Diameter: 0.245Part Number: BC23418Max Rotational Speed: 700Size: 2-3/4"Fits Hole Size: 2.75Grit Type: 180Overall Length: 8 Verified Purchase
Had a cylinder that the piston tings had rusted to from sitting outside for so long. This hone took all the rust right off and made the cylinder look real nice. I've never honed a cylinder before but it was easy and turned out great. I can't attest to the longevity of this only because I had used it on 2 cylinders. But for the 2 I did, it worked like a charm.
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Shank Diameter: 0.245Part Number: BC25824Max Rotational Speed: 700Size: 2-5/8"Fits Hole Size: 2.625Grit Type: 240Overall Length: 8 Verified Purchase
Easiest hone in the world to use. It should be within 1/8" of your bore size (LARGER, not smaller). If you're used to flat stone hones, bear in mind that this hone must be TURNING when you insert it in the bore. Will deglaze any cylinder, even if it worn unevenly. Even works on 2-cycle cylinders, but remember it must be within 1/8" of your bore size or the stones will catch on the ports, fracture, and otherwise misbehave. A bonus for 2-cycle cylinders is it puts a nice little radius on the edge of the ports, eliminating the step of breaking the edge.
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Shank Diameter: 0.140Part Number: BC11M12Max Rotational Speed: 900Size: 11 mmFits Hole Size: 0.433Grit Type: 120Overall Length: 8 Verified Purchase
I was faced with a corroded brake caliper slide pin and hole, i.e. the blind hole into which the pin is threaded and on which the caliper slides back and forth. The hole was 11mm in diameter and about two inches deep. I put the hone in my drill press and ran it in and out of the corroded hole. Using a little 30 wt. oil, it quickly cleaned out the corrosion, allowing the pin to once again fit properly. If you are faced with a similar problem, these hones come in a variety of sizes and are highly recommended.
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Shank Diameter: 0.245Part Number: BC30024Max Rotational Speed: 700Size: 3"Fits Hole Size: 3Grit Type: 240Overall Length: 8 Verified Purchase
This is a great flex hone; it left a clean cylinder bore, with a really nice cross-hatch pattern. Worked like a champ.
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Shank Diameter: 0.190Part Number: BC5812Max Rotational Speed: 900Size: 5/8"Fits Hole Size: 0.625Grit Type: 120Overall Length: 8 Verified Purchase
Fantastic item. Used it to hone out a tilt tube for my boat engine. Was caked up with multiple years of grease that hardened up and froze my steering shaft. I ordered 2, one to get the grease out, the other to polish and smooth out the tube. I couldn't ask for a better hone. I will be buying from this maker again. I highly recommend.
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