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Flex Hones
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  3. Abrasive & Finishing Products
  4. Finishing Products
  5. Laps & Hones
  6. Flex Hones
  7. Flex-Hone GBD30012 3"…
Flex-Hone

Flex-Hone GBD30012 3" (76mm) Diameter 120 Grit Silicon Carbide | Self-Centering Honing Tool for Steel & Cast Iron

Flex-Hone GBD30012 3" (76mm) Diameter 120 Grit Silicon Carbide | Self-Centering Honing Tool for Steel & Cast Iron - main product image
All-inclusive price — duties & taxes paid, no customs charges at delivery
₹11,300₹13,770

You save ₹2,470 (18%)

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Flex-Hone GBD30012 3" (76mm) Diameter 120 Grit Silicon Carbide | Self-Centering Honing Tool for Steel & Cast Iron — 3.000" (76mm) / 120 Grit
3.000" (76mm) / 120 Grit
₹11,300
₹13,770
In Stock
Flex-Hone GBD30012 3" (76mm) Diameter 120 Grit Silicon Carbide | Self-Centering Honing Tool for Steel & Cast Iron — 3.000" (76mm) / 240 Grit
3.000" (76mm) / 240 Grit
₹7,870
₹11,120
In Stock
Flex-Hone GBD30012 3" (76mm) Diameter 120 Grit Silicon Carbide | Self-Centering Honing Tool for Steel & Cast Iron — 3.500" (89mm) / 120 Grit
3.500" (89mm) / 120 Grit
₹10,250
₹14,630
In Stock

Estimated doorstep delivery by 22 Nov - 24 Nov from USA

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High-Quality Honing at Competitive Price

About this item

Flex-Hone GBD30012 is a precision honing tool designed for automotive, firearm, and industrial applications. Its self-centering, self-aligning construction ensures uniform cross-hatch patterns and true plateau finishes on cylinders made of mild steel, stainless steel, cast iron, and softer ferrous materials. The 120 grit Silicon Carbide abrasive provides a fine finish, typically achieving 35-50 Microinch (0.9-1.4 Micrometer). The tool's oversized manufacturing creates optimal pressure, enabling rapid ring seating, better oil control, and longer seal life. Suitable for use with hand drills, drill presses, or CNC equipment, it simplifies deburring, radiusing, and edge blending in one operation. Delivered from USA, with all duties included, tracked in 11-13 days.

Brush Research pioneered plateau honing in 1972, and the FLEX-HONE® remains a trusted choice for cylinder finishing. Its abrasive globule design effectively removes burrs and prepares surfaces for sealing or reassembly. The tool is ideal for firearm chambers, engine cylinders, hydraulic components, and more. Its self-compensating feature reduces setup time and training, making it suitable for automated or secondary machining processes. The high-quality USA manufacturing ensures consistent performance and durability, supporting long-term maintenance and repair needs in Indian workshops.

In India, the FLEX-HONE® offers a reliable alternative to local abrasive tools, with precise grit control and self-centering operation. Delivered via ExpressBox, it arrives ready for immediate use, with all customs duties paid. Its compatibility with standard Indian drills and equipment makes it a versatile choice for automotive, manufacturing, and repair professionals seeking quality honers from the USA.

Key Features

  • QUALITY — Proudly Made in the USA. Quality and consistency you can count on made from the inventors and makers of the tool.
  • DESIGN — The FLEX-HONE is intentionally manufactured oversized. This engineered oversize creates the optimal amount of pressure inside the cylinder wall allowing the tool to be self-centering, self-aligning and self-compensating for wear and easy use.
  • FINISHING BENEFITS — Offered in a wide variety of grits to achieve specific finishing tolerances as well as a beautiful crosshatch finish. Ideal for rebuilding hydraulic and pneumatic cylinders, engine and brake cylinders, valve guides, pumps, compressors and more.
  • CROSSHOLE DEBURRING — Accomplish finishing and deburring simultaneously in a single setup. Can be used in virtually any rotating spindle from a hand drill, drill press or CNC equipment.
  • 120 GRIT SILICON CARBIDE ABRASIVE — Excellent on mild steel, stainless steel, cast iron and other softer ferrous materials. Typically achieves a finish of 35 - 50 Microinch (.9 - 1.4 Micrometer).
  • WHAT'S INCLUDED — 1 Each of a GBD Heavy Duty FLEX-HONE: 3.000" (76mm) Bore Diameter, 5" Abrasive Part Length, 0.310" Shank Diameter, 13.5" Overall Length. For Use on Bore Diameters Between 2.751"-3.000". PLEASE NOTE: ORDER BY BORE SIZE.

Why choose this product

Proven USA Engineering & Quality

Brush Research's FLEX-HONE® tools have been industry standards since 1972, offering consistent, high-performance honing solutions. Made in the USA, they deliver reliable results for automotive, firearm, and industrial applications, supporting long-term maintenance and repair needs in India.

Ideal for Professionals & Workshops

Self-centering, self-aligning, and wear-compensating, the FLEX-HONE® simplifies cylinder finishing, reduces setup time, and enhances productivity. Suitable for automating deburring and radiusing in manufacturing or repair shops, with delivery tracked from USA in 11-13 days.

How to use

  • Select the Correct Bore Size — Measure your cylinder bore accurately and order the oversized hone matching the bore diameter for optimal pressure and self-centering performance.
  • Attach to Rotary Tool — Connect the FLEX-HONE to your hand drill, drill press, or CNC spindle, ensuring the shank fits securely and the tool rotates freely.
  • Operate at Recommended RPM — Run the tool at 500-1200 RPM, applying steady pressure. Use honing oil or lubricant during operation for best results.
  • Finish & Clean — After honing, remove debris, inspect the surface, and reassemble. The tool supports automated deburring and radiusing for a complete finish.

Example scenarios

Typical situations where Flex-Hone GBD30012 3" (76mm) Diameter 120 Grit Silicon Carbide | Self-Centering Honing Tool for Steel & Cast Iron helps — illustrative scenarios, not customer reviews.

1
Scenario 1
Illustrative example
Where it helps

An automotive workshop in Mumbai needs to deglaze engine cylinders quickly and accurately without extensive setup.

How this product helps

Using the FLEX-HONE GBD30012, the technician achieves a uniform plateau finish, reduces rework, and saves time, with delivery tracked from USA in 11-13 days.

Specifications

Composition

Abrasive MaterialSilicon Carbide
Abrasive Grit120
Bond TypeGlobule Bonded to Nylon

Usage

Recommended UseCylinder honing, deburring, radiusing
Recomm. RPM Range500-1200 RPM
Shelf Life on ArrivalFactory-sealed, check manufacturer's date
Reapplication Math1 tool lasts for multiple cylinders depending on size and finish
Cost per Use₹11,300 per piece
Suitable forSteel, stainless steel, cast iron, softer ferrous materials

How we compare

FeatureFlex-Hone GBD30012 3"Others
Material CompatibilitySilicon Carbide abrasive, ideal for steel, cast iron, stainless steel, and softer ferrous materialsLocal abrasives often less uniform, may not suit all base materials, with inconsistent finish quality
Finish Quality & PrecisionProduces a true plateau finish with uniform cross-hatch pattern, typically 35-50 MicroinchOften rougher finish, peaks and valleys, less consistent surface finish
Self-Centering & Ease of UseEngineered oversized, self-centering, wear-compensating, no elaborate setup neededRequires manual adjustment, less precise, longer setup times

Product details

SKUhjm5952
GTIN0843469147974
BrandFlex-Hone
Size3.000" (76mm)
Grit120
MaterialSilicon Carbide
Item Weight0.77 kg (1.7 lbs)

About Flex-Hone

Brush Research Manufacturing has pioneered plateau honing since 1972, delivering USA-engineered tools trusted worldwide for precision surface finishing.

Compliance & Legal

This is a dietary supplement; not intended to diagnose, treat, cure or prevent any disease.

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FAQ, See What Others Asked

How do I choose the correct diameter flexible cylinder hone for my bore?
Order the Flex-Hone that matches your actual cylinder bore size. The tool is intentionally manufactured oversized, ensuring a proper fit and optimal pressure for uniform honing. It self-centers and adjusts during use, providing a true plateau finish on steel, cast iron, and softer ferrous materials. Delivered from USA, with all duties paid, tracked in 11-13 days.
Which grit size should I choose for engine cylinder deglazing and re-ringing?
A 180 or 240 grit Silicon Carbide hone is ideal for creating a cross-hatch pattern, aiding oil retention and piston ring seating. The 120 grit finish, like this model, is suitable for heavy deburring and rougher prep, typically achieving 35-50 Microinch (0.9-1.4 Micrometer).
Is this honing tool suitable for stainless steel and cast iron?
Yes, the Silicon Carbide abrasive on this FLEX-HONE® is excellent on mild steel, stainless steel, cast iron, and other softer ferrous materials. Its design ensures effective finishing, deburring, and radiusing for these base materials.
Can I use this tool with a hand drill or CNC equipment?
Absolutely. The FLEX-HONE® is compatible with virtually any rotating spindle, including hand drills, drill presses, and CNC machines. Its self-centering feature simplifies setup and ensures consistent results across applications.
How long does it take for the tool to arrive in India?
All orders are shipped via ExpressBox from USA, with delivery in 11-13 days. Duties and taxes are included, ensuring a smooth import process and quick setup for your workshop.

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Flex-Hone GBD30012 3" (76mm) Diameter 120 Grit Silicon Carbide | Self-Centering Honing Tool for Steel & Cast Iron

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Flex-Hone GBD30012 3" (76mm) Diameter 120 Grit Silicon Carbide | Self-Centering Honing Tool for Steel & Cast Iron

₹11,300

Flex-Hone GBD30012 3" (76mm) Diameter 120 Grit Silicon Carbide | Self-Centering Honing Tool for Steel & Cast Iron

This item

Flex-Hone GBD30012 3" (76mm) Diameter 120 Grit Silicon Carbide | Self-Centering Honing Tool for Steel & Cast Iron

₹11,300

Total price:

₹28,410

You save ₹8,680 (23%) Extra

3 items selected

3 items

₹28,410

You save ₹8,680 (23%) Extra

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Spec
Price
₹11,300
₹13,770
₹13,180
₹19,060
₹3,930
₹4,260
₹3,940
₹5,770
₹3,230
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Brand NameFlex-HoneFlex-HoneFlex-HoneFlex-HoneFlex-HoneGringooYOLISTIC
SourceUS RetailUS RetailUS RetailUS RetailUS RetailUS RetailUS Retail
Sold ByCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrow
Imported from USA
₹11,300₹13,770

You Save ₹2,470

Estimated doorstep delivery by 22 Nov - 24 Nov from USA
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Place your order
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Packed & shipped
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Fast transit
Consignment to India Warehouse
Customs cleared
Doorstep delivery
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You Order
Place your order
USA Warehouse dispatch
Packed & shipped
International Air Shipping
Fast transit
Consignment to India Warehouse
Customs cleared
Doorstep delivery
Delivered to you

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₹33,900+ (3× the price)
₹11,300 locked, all-in
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11-13 days · live tracking
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