Overview Reviews Product Description This tool makes it easy to apply a 37 degree flare on your hardline tubing to allow them to seal against a 37 degree Male AN hardline adapter. Suitable for use on tubing measuring from 1/8 in. to 3/4 in.. Product Videos Custom Field Product Reviews Write a Review Write a Review × Vibrant Vibrant Hardline Tubing Flare Tool, 1/8" to 3/4" Tubing Diameter Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *