1、APPLICABLE ELECTRODE: This TIG pen electrode holder is designed for TIG welding and is compatible with 1.0mm to 3.2mm wire, i.e. 1/32in‑1/8in; A wire with a minimum diameter of 0.8mm can also be used, but the effect may not be as good as a 1.0mm electrode 2、EXCELLENT CONSTRUCTION: This Tig pen is made of excellent, highly durable materials, with an aluminum body combined with a steel pocket clip and an elegant blue anodized treatment that guarantee years of rust resistance 3、SAFE DESIGN: With a comfortable, non slip handle, lightweight and portable design, and a practical pocket clip, this TIG pen improve your performance, protect your fingers from potential injury or burns, and save your time 4、IMPROVED ACCURACY: With the tig pen, you can better control the wire, manually control and ensure that the wire speed is uniform, resulting in quality welding work and minimization of time, energy and material waste 5、SAVE TIME AND EFFORT: This TIG welding finger feeder will keep your fingers safe and create better welding results. You may need such a wire feed pen, just roll the rubber wheel with your index finger, the wire feed pen can provide accurate and consistent TIG electrode wire feed, help you better control the wire, manual control of uniform wire feed, save more time, improve your work efficiency, which is the ideal choice for professionals and beginners