Original E3D V6 Heater Block for Sensor Cartridge The V6 heater block is a core part of the E3D ecosystem as the standard heater block used in most of our HotEnds. Supplied with an M3 grub screw to secure a cartridge-style Thermistor, PT100 or Thermocouple, and an M3 dome head screw to clamp the heater…