A large range of hard drawn and extruded telescopic tube are available as well as telescopic tube in structure grades 6005A T5 , 6060 T5, 6060 H81, 6061 T6 and 6063 T6
The tube can be cut to your size at no extra charge - boxed and freighted to your location ready for your antenna project.
This is a small selection of the sizes available. I have the sizes mentioned in the ARRL Antenna Handbook. 1/4 inch, 3/8 inch, 1/2 inch, 5/8 inch, 3/4 inch, 7/8 inch, 1 inch, 1 1/8 inch with a wall thickness of 1.42 mm ;0.056 inch, the thickest wall tube available.
Metric sizes start at 10 mm and go to 100 mm.
The metric telescopic range starts at 32 mm and goes to 68 mm. Sizes are 32 mm, 35.6 mm, 40 mm, 44 mm, 48 mm in 1.6 mm wall. 40 mm, 45 mm, 50 mm, 55 mm in 2 mm wall, 61 mm in 2.5 mm wall; 68 mm in 3.25 mm wall
NBS Antennas & Masts specialise in Amateur Radio Drawn Aluminium sizing.
When the Owner (VK3BS) is an other amateur radio operator he knows what you need and endeavors to provide the right grade and size for any project.
We can machine parts to your specifications or design the part for you.