320 Grit Engine Cylinder Flexible Ball Hone All sizes：3mm –110mm

Professional Ball Brush Hone Tool – Specialized for Engine Rebuilding (320 Grit, Multiple Sizes Available)
Premium Cylinder Hone Tool 🔧 Application Scope:

• Remove stubborn glaze from cylinder walls
• Create ideal crosshatch honing patterns
• Prepare cylinder bores for fitting new pistons and piston rings
• Restore performance of both classic and modern engines

📋 Technical Specifications

• Material: High-grade silicon carbide
• Grit: 320 (Ideal for modern engines requiring smooth cylinder wall finish)
• Suitable for: Professional auto repair shops and experienced automotive DIY enthusiasts
• Available Sizes (Diameter):
  • Large Bore (90mm and above): 110mm, 105mm, 96mm, 91mm
  • Medium Bore (60–90mm): 85mm, 80mm, 77mm, 68mm
  • Small Bore (Below 60mm): Contact us for custom options

Size Selection Guide Cylinder Bore Specification Recommended Hone Size Above 90mm (V8/Large-displacement Engines) 3–6mm larger than cylinder bore 60–90mm (Medium-displacement Engines) 2–4mm larger than cylinder bore Below 60mm (Small-displacement Engines) 1–3mm larger than cylinder bore Professional Selection Tips

• The 105mm/108mm sizes are suitable for Holden/Ford V8 engines (4-inch bore models)
• 320 Grit: Best suited for late-model engines
• 240 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 Notes

• Must 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
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📦 Package Content 1 x Ball Brush Hone (size as selected by customer)

On Mar 22, 2026 at 19:44:59 PDT, seller added the following information: