3 \" 77MM Engine Flexible Cylinder Hone Brush Silicon Ball 240 Grit For Sale

Feature:1. Designed to work with cylinder bores from 2.6\" to 3.055\".2. Flexible Cylinder Hone for all engine applications utilizing a 2.9\" to 3.055\" or 73mm to 78mm bore.3.Perfect for all engine types and block materials.4. Perfect for Chevy small blocks but will work with other engines as well.5. 240 grit, EXCELLENT for reringing jobs or final bore.6. Tool is labeled as 3\" diameter but is actually slightly larger to provide the required wall force for honing the 3\" bore🔧 Application Scope:Remove stubborn glaze from cylinder wallsCreate ideal crosshatch honing patternsPrepare cylinder bores for fitting new pistons and piston ringsRestore performance of both classic and modern engines📋 Technical SpecificationsMaterial: High-grade silicon caroffereGrit: 240Sizes (Diameter): 77mmSize Selection GuideCylinder Bore Specification Recommended Hone SizeAbove 90mm (V8/Large-displacement Engines) 3–6mm larger than cylinder bore60–90mm (Medium-displacement Engines) 2–4mm larger than cylinder boreBelow 60mm (Small-displacement Engines) 1–3mm larger than cylinder boreProfessional Selection TipsThe 105mm/108mm sizes are suitable for Holden/Ford V8 engines (4-inch bore models)320 Grit: Best suited for late-model engines240 Grit: Suitable for classic engines (contact us for purchase)⚠️ Never select a size that exactly matches the cylinder bore – always choose a larger size!⚠️ Important Usage NotesMust use high-quality honing oil (wet operation only, dry honing is strictly prohibited)Post-honing Cleaning Process: Solvent cleaning → Secondary cleaning with soapy water → Wipe cylinder walls with automatic transmission fluid (ATF)Always verify the selected size against the engine\'s original factory specifications📦 Package Content1 x Ball Brush HoneNOTE：1、Please check the product size before deciding to buy. It is very important!！The product area is relatively small, if it is not convenient to use, you can buy two or more, and use them together2、Please allow 1-2cm measuring deviation due to manual measurement.3、Due to the different monitors and light effects, the actual color of the item might be slightly different from the color showed on the pictures. THANKS!、Due to the different monitors and light effects, the actual color of the item might be slightly different from the color showed on the pictures. THANKS!