Bore 4.1mm Optimized V6 All Metal Throat Modified Version V6 Heatbreak for 3D Printer V6 Extruder Hotend Pack of 5

Bought a clone of a Diamond triple hotend. The heatbreaks that came with it were all metal, PTFE tube just touched it at the tip, nothing but jams with PLA filament. Saw that the genuine Diamond HE uses a heatbreak where the PTFE goes all the way thru. Took a bit of searching, but these matched the genuine ones. Bought this set, wondering which review was right (some said the PTFE tube would only go thru halfway). I am happy to report, PTFE goes ALL the way thru, and no more jams on the clone Diamond hotend!

Finally! Somebody made a heatBreak without a stupid shoulder halfway through! I love these.My teflon tubes pass all the way through to but up against the nozzle orifice. Both 2.85mm and 1.75mm.Basically any tube intended for 1.75mm filament will work and I used Gauge 8 PTFE tube for 2.85mm. Here's a link:https://www.amazon.com/gp/product/B000FOYLHY/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

Really wish they would have advertised more clearly this is for bowden tube or 3mm filament. Build quality looks fine but not usable for me at the moment.

Worked well for replacing a broken hot end throat.This only fits your hotend's heatsink if you had the same size throat before. Regular E3D hotends have a smaller diameter hole. Make sure you check before ordering.

these are listed as all metal when in fact they are "all metal" so that your bowden tube becomes the liner for your throat. while the quality looks nice it's not what I expected I guess nest time I will look at the images a little closer because some show the correct images.

I agree with Dracenknights, these are not ideal for printing higher temperatures since the bore is uniform through the entire body of the heatbreak, meaning your bowden tube runs all the way to the nozzle. Therefore, I don't see any advantage of this product versus a teflon coated heatbreak. Also, I had issues with clogging when I thought my Bowden tube was not pushed all the way through, so the filament oozed and created a large blob in the extra space before entering the nozzle. I believe if you make sure the Bowden tube runs all the way down they should work, but this definitely introduces the possibility for issues. Either get an all metal where the bore in the heatbreak is reduced to only allow the filament to pass, or get a teflon coated heatbreak.

These supposedly need no tubing but I still added a piece of no friction tubing in the throat and that keeps the heat only in the heating block!

This helped the v6 clone tremendously.