OLEARN V6 Heating Block For Reprap 3D Printer Extruder

OLEARN V6 Heating Block For Reprap 3D Printer Extruder

Name：Aluminium Heat Block V6 J-head RepRap Makerbot MK7 or MK8.
Size：Length x width x height 16*12*20mm.
Material：Aluminum.
Accept Nozzle with M6 screw thread.
Inner hole for heater tube：6mm.
Inner hole for thermocouple/thermistor：3mm.
Inner hole for set screw：M3.