The Touch N Flow applicator (TnF) is unique in the field of modeling tools, as it allows the modeler to carry a significant amount of thin liquid cement to long joints in confined spaces, which is especially helpful in ship or large airplane modeling projects. While simple in construction, using the TnF applicator requires a bit of technique, because if the applicator is tipped so the fine tube end is lower than the glass tube, cement will flow, the steeper the angle, the more cement will flow. Once cement has been drawn into the tube, the technique required to keep it there is to transport it in a level attitude to the model, moving the applicator to the joint in a level attitude, then tilt it up to allow the cement to flow. Not keeping the tube level will allow plastic cement to drop onto the model's surface, possibly ruining surface detail. It takes a bit of practice, but keeping the cement in the tube and off the model is a skill that is easily learned. In some instances, the tip may become clogged with plastic from a joint. TnF recommends setting the tip in liquid cement to dissolve the plastic. That usually works, but can take some time, and modelers have discovered that a high E guitar string can be inserted in the metal tube to clear the blockage, minimizing down time. I have two applicators so I can soak one, and have a spare if one breaks (the TnF uses a tempered glass tube that requires some caution and care when using and storing it)

Simply the best tool you could have. It is very easy to use. I recommend the one drop applicator, also by Flex-I-File, to fill this applicator. It does clog sometimes, but dipping it in glue will clear it quickly. I normally drop the applicator in the bottle of glue, then use the one drop applicator to suck some glue out, and then fill the touch-n-flow from the back. I have only used this with extra thin cement, and it flows perfectly. It is the best $6 you can spend in this hobby. If you store this with the plastic tube container it came in, be careful not to bend the needle while closing the cap.

This is one of the best tools I have found for getting in to tight places to apply glue. The long fine needle point will reach just about any where you need to apply liquid glue. I do armor models and it put the glue where I need it. A couple of things to remember: keep the tip level until you are ready to apply glue or it will start to flow before you are ready, also the tube is made of glass and it will break easilyso handle with care or do as I do and buy two so you have a spare