Replacement soldering iron assembly for 21-10115 and 21-10120 Tenma soldering stations.
This is a nice iron. But if you change tips, you will see that the heating element is fully exposed when you remove the existing tip. The fact that there is no protective metal cover over the element is very good for maximum heat transfer between the element and the tip (no additional layer of metal to slow things down), but it also means the element is fully exposed and subject to damage. I have two of the #21-10115 solder stations, and I am about to order my third replacement soldering iron because of damage to the heating element. Some of the ceramic coating just fell off of one of the heating elements as I was changing tips, so it is time for another replacement iron.
Also note that there are irons available on Ebay that look identical to the one that is used in this soldering station, but they are NOT compatible with this soldering station. The Ebay irons usually have a thermistor built into the heating element to sense temperature. This requires a 5-wire connection. The MCM irons do not use a thermistor, apparently sensing the element resistance as it heats up (just guessing here). Therefore, the wiring of the connector is different and not compatible. So, be gentle, and consider a spare iron.
I really like the 60 watt digital soldering station that uses these, however this part is the weak link of the system. While these heat up very, very quickly and have very long lasting tips - the real issue is that the construction is weak... they loosen, crack and eventually break in the handle area. I also had one where the temperature sensor failed almost immediately, and these were on back-order for the warranty replacement. Frustrating!
21-10140 - Small Chisel Replacement Tip - 0.8mm x 17mm
Replacement tip for Tenma models 21-10115, 21-10120, and 21-10130, and other brands.
21-10142 - Small Chisel Replacement Tip - 1.2mm x 17mm
21-10144 - Small Chisel Replacement Tip - 1.6mm x 17mm
21-10146 - Small Chisel Replacement Tip - 2.4mm x 17mm
21-10148 - Conical Replacement Tip - 0.5mm x 17mm
21-10150 - Conical Replacement Tip - 0.2mm x 17mm
21-10152 - Angled Chisel Replacement Tip - 2mm x 17mm
21-10154 - Angled Chisel Replacement Tip - 3mm x 17mm
21-10156 - Angled Chisel Replacement Tip - 4mm x 17mm
21-10158 - Micro Conical Replacement Tip - 0.2mm x 17mm
22-24120 - 22" Black Tactical Weatherproof Equipment Case
Durable equipment case provides maximum shock protection for contents making it useful for instruments, audio/video equipment, tactical gear, photographic equipment and test equipment. Pre-cut cubed foam insert (top layer only) is easily customizable to fit nearly...
28-955 - Double Sided Foam Tape
Thousands of uses Fasten accessories to car dash, etc. 3/4" x 61/2' roll
MCM Electronics gave me terrific service and great prices. I will cheerfully shop with them again for my electronic needs.