Brush Research Parts and Accessories

Since its inception in 1958, Brush Research has championed the idea that perfectly finished internal surfaces can lead to better engine performance. Its Flex-Hone tool...

Since its inception in 1958, Brush Research has championed the idea that perfectly finished internal surfaces can lead to better engine performance. Its Flex-Hone tool remains the standard for deburring and finishing cylinder blocks. Brush Research offers a full line of honing tools for a wide range of engines and also carries hone oil, cylinder wash brushes, wire wheel brushes, valve guide brushes, and more. Remove peaks and imperfections from engine surfaces with Brush Research and Summit Racing. Shop today!

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Brush Research GB Flex-Hone Tools GB41832

Brush Research GB Flex-Hone Tools GB41832

Cylinder Hone Tool, GB Flex-Hone, Brush Type, Silicone Carbide, 320 Grit, 3.750 in. to 4.125 in. Diameter, 13.50 in. Length

Part Number: BRH-GB41832

4.97 out of 5 stars ( 29 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Brush Research GBD Flex-Hone Tools GBD41432

Flex Hone Tool, GBD Series, 4.000 in. to 4.250 in., 320 Grit, Silicone Carbide, Each

Part Number: BRH-GBD41432

5.0 out of 5 stars ( 16 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Brush Research GBD Flex-Hone Tools GBD41424

Flex Hone Tool, GBD Series, 4.000 in. to 4.250 in., 240 Grit, Silicone Carbide, Each

Part Number: BRH-GBD41424

4.89 out of 5 stars ( 35 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Brush Research GB Flex-Hone Tools GB41824

Cylinder Hone Tool, GB Flex-Hone, Brush Type, Silicone Carbide, 240 Grit, 3.875 in. to 4.125 in. Diameter, 13.50 in. Length

Part Number: BRH-GB41824

4.93 out of 5 stars ( 40 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Brush Research GBD Flex-Hone Tools GBD41232

Flex Hone Tool, GBD Series, 4.250 in. to 4.500 in., 320 Grit, Silicone Carbide, Each

Part Number: BRH-GBD41232

4.92 out of 5 stars ( 13 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Brush Research GB Flex-Hone Tools GB45832

Cylinder Hone Tool, GB Flex-Hone, Brush Type, Silicone Carbide, 320 Grit, 4.125 in. to 4.625 in. Diameter, 13.50 in. Length

Part Number: BRH-GB45832

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Brush Research GBD Flex-Hone Tools GBD414400

Flex Hone Tool, GBD Series, 4.000 in. to 4.250 in., 400 Grit, Silicone Carbide, Each

Part Number: BRH-GBD414400

4.78 out of 5 stars ( 9 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Brush Research GBD Flex-Hone Tools GBD41224

Flex Hone Tool, GBD Series, 4.250 in. to 4.500 in., 240 Grit, Silicone Carbide, Each

Part Number: BRH-GBD41224

4.71 out of 5 stars ( 21 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Brush Research Hone Oil FHQ

Cylinder Honing Oil, 1 qt., Each

Part Number: BRH-FHQ

4.93 out of 5 stars ( 15 )

Cannot be shipped Internationally

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Cannot be shipped Internationally

Brush Research GBD Flex-Hone Tools GBD40024

Flex Hone Tool, GBD Series, 3.750 in. to 4.000 in., 240 Grit, Silicone Carbide, Each

Part Number: BRH-GBD40024

4.77 out of 5 stars ( 13 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Brush Research BC Flex-Hone Tools BC7832

Hone, BC Flex-Hone, 0.875 in. Diameter, Silicon Carbide, 320 Grit, Each

Part Number: BRH-BC7832

4.79 out of 5 stars ( 19 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Brush Research GB Flex-Hone Tools GB45824

Cylinder Hone Tool, GB Flex-Hone, Brush Type, Silicone Carbide, 240 Grit, 4.125 in. to 4.625 in. Diameter, 13.50 in. Length

Part Number: BRH-GB45824

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Brush Research GB Flex-Hone Tools GB41812

Cylinder Hone Tool, GB Flex-Hone, Brush Type, Silicone Carbide, 120 Grit, 3.750 in. to 4.125 in. Diameter, 13.50 in. Length

Part Number: BRH-GB41812

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Brush Research GB Flex-Hone Tools GB31224

Cylinder Hone Tool, GB Flex-Hone, Brush Type, Silicone Carbide, 240 Grit, 3.25 in. 3.500 in. Diameter, 13.50 in. Length

Part Number: BRH-GB31224

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Brush Research GBD Flex-Hone Tools GBD40032

Flex Hone Tool, GBD Series,3.750 in. to 4.000 in., 320 Grit, Silicone Carbide, Each

Part Number: BRH-GBD40032

5.0 out of 5 stars ( 15 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Brush Research GBD Flex-Hone Tools GBD50024

Cylinder Hone, Brush Type, Silicone Carbide, 240 Grit, 4.500 in. to 5.000 in. Bore, Each

Part Number: BRH-GBD50024

Not Yet Reviewed

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Brush Research GB Flex-Hone Tools GB418400

Cylinder Hone Tool, GB Flex-Hone, Bead Style Brush Type, Silicone Carbide, 400 Grit, 4.125 in. Diameter, 13.50 in. Length

Part Number: BRH-GB418400

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Brush Research Oil Line and Gallery Brush Kits OGK

Engine Brushes, Oil Line and Gallery Set, 6/12 Nylon Bristles, for Cleaning Main Galleries, Feed Lines, Main Bearings, Set of 5

Part Number: BRH-OGK

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Brush Research Flex-Hones for Rotors RMFH120Z25

Brake Rotor Finishing Grinder, Flex-Hone, Medium Grit, Each

Part Number: BRH-RMFH120Z25

4.43 out of 5 stars ( 7 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Brush Research GBD Flex-Hone Tools GBD31232

Cylinder Hone, Brush Type, Silicone Carbide, 320 Grit, 3.250 in. to 3.500 in. Bore, Each

Part Number: BRH-GBD31232

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Brush Research GB Flex-Hone Tools GB33424

Cylinder Hone Tool, GB Flex-Hone, Brush Type, Silicone Carbide, 3.500 in. to 3.750 in. Diameter, 13.500 in. Overall Length

Part Number: BRH-GB33424

5.0 out of 5 stars ( 12 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Brush Research GBD Flex-Hone Tools GBD412240AO

Hone, GBD Flex-Hone, 4.250 in. to 4.500 in. Bore, Silicone Carbide, 240 Grit, Each

Part Number: BRH-GBD412240AO

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Brush Research BC Flex-Hone Tools BC7824

Hone, BC Flex-Hone, 0.875 in. Diameter, Silicon Carbide, 240 Grit, Each

Part Number: BRH-BC7824

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Brush Research GB Flex-Hone Tools GB31424

Cylinder Hone Tool, GB Flex-Hone, Brush Type, Silicone Carbide, 240 Grit, 3.00 in. to 3.250 in. Diameter, 13.50 in. Length

Part Number: BRH-GB31424

4.89 out of 5 stars ( 9 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Brush Research GBD Flex-Hone Tools GBD414800

Flex Hone Tool, GBD Series, 4.000 in. to 4.250 in. Bore, 800 Grit, Silicone Carbide, Each

Part Number: BRH-GBD414800

Not Yet Reviewed

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

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