Weller WD1001 95w/120v Digital Single Channel Silver Series Soldering Station Super-fast heat-up and superior thermal recovery for fast efficient soldering Tips on WMP are secured to the pencil by use of a threaded end, which eliminates the need for a barrel nut Heater is integrated into the handle, so when the tip dies, the heater lives on 3 programmable temperature preset buttons allowing quick and easy temperature changes Programmable features such as temperature standby, lockout, set-back, and offset