Cal-Van Tools 165 Master Inline Flaring Kit - Double and Single Flares, Brake Flaring Tools. Professional Tool Kit Specifications: this flaring set includes 3/16 in., 1/4 in., 5/16 in. and 3/8 in. double and single flares which are designed to reduce the chance of the tube slipping from the clamp. Double and bubble flares measure 4.75mm, 6mm, 8mm Equipment Design: with compact design, the in-line flaring tool enables the user to flare copper or soft steel tubing in tight spaces. The double clamp and hex body keeps tube from slipping, keeping flares centered and making flaring easier Flaring Tool Adapters: in-line flaring set is designed to simplify flaring chores. The design locks the adapter's cone and tube in a perfect line which makes accurate factory flares with less risk of breakage Tubing Tool Kit: with the clamp and screws laying pressure directly over the tube, there is a great chance of the tube slipping from the clamp. Flaring tools reduce this chance and make it work effectively Durable Material: flaring kit swivel-type swaging adapters and flaring cone are made of the sturdiest steel materials  perfect for tough job sites