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Professional Ball Brush Hone Tool – Specialized for Engine Rebuilding (320 Grit, Diameter 77mm)Premium Cylinder Hone Tool🔧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 Specifications
Material: High-grade silicon caroffereGrit: 320 (Ideal for modern engines requiring smooth cylinder wall finish)Suitable for: Professional auto repair shops and experienced automotive DIY enthusiasts
Available Sizes (Diameter): 77mm
Size Selection Guide
Cylinder 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 Content
1 x Ball Brush Hone (320 Grit, Diameter 77mm)Note:1. Please allow 1-2cm measuring deviation due to manual measurement. Please check the product size before deciding to buy. It is very important!！2. 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!3.If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!On Jul 20, 2026 at 03:29:04 PDT, seller added the following information:
On Aug 29, 2026 at 01:15:44 PDT, seller added the following information:
