Wish one is best for a cylinder wall that is 75mm (2.95 inch) ?

For the cylinder wall bore size of 2.95", the 3" Flex-Hone is the correct choice., Enter this ASIN # B002N3AA2A in the Amazon search bar for the correct hone.

Hello, my cylinder bore is 3 1/8" what size tool do i need to purchase thank you.

For a 3.125" bore, your application will require the 3-1/4" (3.250") diameter Flex-hone. The 3-1/4" will work perfectly in the 3-1/8" bore as the 3-1/4" Flex-hones working range is down to 3.000". Thank you for the inquiry.

Can i use this to hone out an old cast iron pipe? it's about 3 3/4" now and i want it at 4" id. thanks

This hone is not coarse enough to remove that much material. It would take forever and the hone would wear out first. You would need a lathe to remove that amount of thickness.

I see that it says tool is oversized. For a cylinder bore of 3.66, should I be getting the 3.75 or the 3.50 model?

1I bought a 4.50 and used it on a 3.55 bore with no problem I didn't hone as much as instruction said for large bore, hatch marks were beautiful so go bigger and you can use it over a broad area of bores.

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Brush Research FLEX-HONE Cylinder Hone, GB Series, Silicon Carbide Abrasive, 3-1/2" (89 mm) Diameter, 120 Grit Size

Brush Research FLEX-HONE Cylinder Hone, GB Series, Silicon Carbide Abrasive, 3-1/2" (89 mm) Diameter, 120 Grit Size

Product ID: 141736385

Details

Brand
Flex-Hone
Bristle type
Crimped Wire
Grit material
Silicon
Grit type
120
Material
Silicon

💎120 grit silicon carbide abrasive

🔧Self-centering & self-aligning

⚙️3.5" diameter precision fit

Description

🔩 Hone your edge, own the finish.

SMART SELF ADJUSTING DESIGN - Self-centering, self-aligning, and self-compensating for wear—no special setup needed.
UNIVERSAL FIT FOR ANY BORE SIZE - From 4mm to 36 inches, tailor your honing with exact sizing for perfect results every time.
VERSATILE APPLICATION POWERHOUSE - Ideal for automotive cylinders, firearms, pumps, and more—deburr and finish in one go.
PROVEN INDUSTRY STANDARD SINCE 1972 - Trusted by professionals worldwide for rapid ring seating and superior surface conditioning.
EFFORTLESS PRECISION SURFACE FINISHING - Achieve a flawless plateau finish that boosts oil retention and extends seal life.

The Brush Research FLEX-HONE GB Series is a 3.5-inch diameter silicon carbide abrasive cylinder hone with 120 grit size, designed for precision surface finishing and cross-hole deburring. Its flexible, self-centering design ensures consistent plateau finishes that improve oil retention and seal performance across a wide range of bore sizes (4mm to 36 inches). Perfect for automotive, industrial, and specialty applications, this tool simplifies honing with no special training required.

Specifications

ASIN	B002XUL1DK
Best Sellers Rank	166,446 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 81 in Flex Hones
Brand	Flex-Hone
Bristle Type	Crimped Wire
Compatible Material	Metal
Customer Reviews	4.5 4.5 out of 5 stars (50)
Grit Material Type	Silicon Carbide
Grit Number	120
Grit Type	120
Included Components	GB 3-1/2" (89MM) 120SC FLEX-HONE
Item Diameter	3.5 Inches
Item Dimensions	34.3 x 13 x 13 centimetres
Item Weight	0.71 Pounds
Manufacturer	Brush Research Mfg.
Manufacturer Part Number	GB31212
Material	Silicon Carbide
Model Number	GB31212
Number of Items	1
Number of Packs	1
Number of Pieces	1
Recommended Uses For Product	Deburring, Finishing
UPC	843469142832
Unit Count	1.0 count

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