VERSATILE - Easily form 37-degreee double, single, and bubble flares in OE steel, stainless steel, and soft metal tubing DIAMETER - Use with 3/16", 1/4", 5/16", 3/8" diameter lines, which means it will handle all your plumbing jobs, from brake lines to transmission cooler lines. VISE-MOUNTED - Mount in your vise to help you easily form 37 degree flares in OE steel, stainless steel, and soft metal tubing. T-HANDLE SCREW CLAMP - T-handle screw clamp securely holds line in place during forming. EASY TO USE - With the turret-style design K Tool allows you to make those precision flares in minimal time.