This is a primary component of our V3b hot end, which can handle temperatures up to 250 C.
V3 Hybrid GrooveMount™ - we've been using Hybrid GrooveMounts in our Super Packs and Plastruders since the beginning of 2010. They combine the strength of PEEK with the low friction of PTFE. The hybrids work with PLA and ABS. The V3 Hybrid GrooveMounts were precision machined: Length is 27mm. Widest diameter is 16mm (actually 5/8"), narrow sections are 12mm. We have V3 Hybrid GrooveMounts available for 1.75mm filament.