Kee Pang 3pcs Aluminum Remote V6 Heatsink and 3pcs Aluminium V6 Heat Block3D Printer Extruder Hotend Heat sink M7 thread - RepRap Bowden E3D J-Head V6 Makerbot MK8 (Pack of 3Pcs)

Actual Measurements:Bigger Version - 50mm height, 25mm diameter (standard clone)This One - 43mm Height, 22mm Diameter (much smaller leaving you with more room for clearing stuff like for sequential printing)You have options with 40mm fans. 4cfm or 7cfm. If you have the bigger heatsink you can get away with the 4cfm fan (less disturbance to abs prints for delaminations and warping up.) because you have more surface area of aluminum for the fan to to effect temperature.You can probably use the 4 cfm on this little guy too, however it will make your heater element bang on less often because the fan cant cool it as fast. Ultimately saving you Electricity from the hotend! Awesome!Gonna mess with these and some heat breaks on my smaller printers, if they work I wont use them for my original purpose and ill replace all 5 of my bowden printers with this awesome lighter smaller design! Plus a few of my hot ends dont clamp but use a stupid set screw so they need replacing anyway. Was gonna machine these into a filament fuser for making big 20lb spools but Now I need to order a bunch more!

Heatsink thread is M7 and heat block thread is M6. Will not fit standard throats. Truly a waste of time.

Im not sure what "standard throats" this other person is using unless he means the typical single sized M6 like that comes with Anet and other Chinese printers but this is the exact same size heatsink as a genuine E3D v6 and used the same exact heatbreak. Considering this is near identical to my genuine E3d, if that is what you know then this is for you. If you only know the single sized heatbreak.... "throat".... and call it standard even though there are only standards within the same category i.e. MK8, V5/6 J head and so forth. Please don't leave rude reviews if you're only experienced in 1 area and call it a standard.