When it comes to fly tying, precision and attention to detail are paramount. That's where the Hareline Cautery Tool comes into play. This remarkable tool is a must-have for any avid fly tyer. It's designed to make your fly tying experience smoother, more efficient, and highly precise. Cautery pens are renowned for their multitude of applications in fly tying. With just a simple press of a button, this tool works its magic. The fine end of the Hareline Cautery Tool becomes red-hot, allowing you to easily burn off those pesky tag ends and other bits of your fly that need cleaning up. No more struggling with scissors or other imprecise tools – the Hareline Cautery Tool gives you unparalleled control. Safety is a top priority, and Hareline understands this. That's why they've included a safety cap with this tool. When you're not using it, simply cover the hot end with the cap to prevent any accidents and keep your workspace secure. The Hareline Cautery Tool is available in one size only and comes with battery supplied. Key features: Batteries not changeable Ideal for burning unwanted ends Perfect for tidying your flies up Please note the tips are not interchangeable with the changeable tip and battery cautery.