Proform Professional Piston Ring Friction Pull Measurement Tool 67657

Minimizing piston ring friction before blow by is one of the best ways to maximize engine efficiency. This tool accurately measures the pull of a ring in the bore for a quantitative measurement of friction as a function of gap and diameter. Get it right and get the trophy! Includes two expandable platforms for pulling, and a precision digital gauge for accurate readings. U.S. Pat. 8.479.570

Piston Ring Friction Measuring Tool | 0-12 LB Digital Gauge | 0.1 oz Resolution | Patented Adjustable Adapters Fit Bores 2.377"-6.250" | Includes Foamed Lined Hard Shell Case | Sold Each

Made in the USA!