Shape and Size. Tapered, single hole, 6.5mm inner diameter for the hole, 21.5mm diameter in the base. 22mm overall length.
Made of high grade Al2O3 Alumina Ceramic, which ensures a great mechanical strength and stable performance while working.
Resistance on high temperature. Capable of the temp up to 1600 degree in celsius(2912 fahrenheit)
1000V Insulatsion, high corrosion resistance, scratch proof and Good chemical stability.
Application. Mainly used in electric heating elements, protection sheaths, insulators.

6.5mm Inner diameter single bore aluminia Aluminous porcelain ceramic tube.
Materials: Alumina Oxide Ceramics (Al2O3)
Size: 6.5mm diameter hole, 22mm overall length
Cap Size: 15.5mm in height
Base Size: 11mm overall height(6mm height in first step, 5mm in second step)
Shape: Tapered (Separate Cap and Base)
Voltage insulation: 1000V
Maximum temperature resistance: 1600 degree in Celsius/2912 degree in fahrenheit
Weight: 65g
Application: electrical heating wires, insulators, high temp protection
Package Content:
5 pcs 6.5mm Inner Dia. Aluminia Ceramic Tapered Insulator