Ensure accurate piston ring gap measurements with the HRB Professional Piston Ring Squaring Tool. Designed for precision engine work, this tool quickly and consistently positions piston rings squarely in the bore, eliminating guesswork and preventing misalignment during the critical gap-checking stage.

Machined from billet aluminium and finished for durability, it’s a simple yet essential addition to any engine builder’s toolkit — whether you’re assembling high-performance race engines or refreshing a street build.

This tool is also available in our Piston Ring File Kit.

Key Features:

• Precision-machined from billet aluminium
• Ensures rings sit perfectly square in the bore
• Compatible with most common bore sizes
• Lightweight, durable, and easy to use
• Designed for accuracy in gap measurement

Why Choose the HRB Ring Squaring Tool?

Even the best ring file is only as accurate as your measurements. This tool guarantees square, repeatable ring placement in the bore so you can gap with confidence. Ideal for professional shops and serious DIYers who demand reliability and precision in every engine build.