🔍 Key Concepts

• Purpose of a ring grooving tool when working on piston ring grooves • Importance of maintaining correct groove width, squareness, and surface finish • Risk of using tools that are too hard or aggressive, which can damage the piston

💭 Think About

• What must a substitute tool be able to remove from the piston ring groove without changing the groove dimensions? • Which options are likely to scratch, score, or enlarge the groove instead of simply cleaning it? • Is it safer to use a tool that is softer than the piston material or harder than it?

✅ Before You Answer

• Identify which choices would tend to cut metal instead of just cleaning deposits • Consider which option best matches the original ring groove shape • Eliminate any option that is likely to damage or distort the groove or piston land