Checking ring end gap is only accurate if the ring sits square in the bore. Press the ring down with this tool and it sets the ring square at the same depth every time, taking the guesswork out of gapping. It fits bores from 4 in. to 4.310 in.

Proform 67652 Piston Ring Squaring Tool Features:

• Fits 4 in. to 4.310 in. bore sizes
• Sets rings square at a consistent depth for gapping
• Helps eliminate guesswork in ring alignment
• Patented design
• Sold individually