Master Appliance UT-40Si Ultratorch Review
We may earn an affiliate commission when you purchase through links on our site. This keeps it 100% reader-supported and free of ads or sponsorships. Thanks for your support!
The Master Appliance UT-40Si Ultratorch is a portable butane soldering iron. It is suitable for a variety of soldering and heat application tasks such as brazing, soldering, vinyl repairs, heat shrinking tubing and spot drying.