1.5 brass colored metal tube with tapered tip and threads on the

Top quality 1.5 O.D. Solid brass tubing with in polished finishes., Perfect for hand rails, bar rails, foot rails, stair railings, kitchen railings,

1.5 Diameter Polished Brass Tubing - Polished Brass / 4-FT LONG TUBING

Found in the door panel of my car. Not sure where it came from or what it is for. It is approx. 2 long and has a sharp point at the tip.

Carbon Steel Seamless ASTM A179 DIN 2391 Tubing

Metal rings(?) hooked/ kept together onto small metal rods. Found it on the sidewalk in a neighbourhood. : r/whatisthisthing

Threaded Tube Inserts, Threaded Square Tube Inserts

What is this 7in long metal object with a needle on the end? : r/whatisthisthing

Witt . I brought a heap of old tools this was with them . No markings.About the size of a permanent marker. Has multiple brass needles at its tip then a slit

Tweco Contact Tip, 0.035 Inches Wire, 0.044 Inches Tip, Standard

How to Determine Pipe Thread Type and Pipe Size – Fresh Water Systems

Airgas - TWE1160-1193 - Tweco® .052 X 1.5 .058 Bore 16 Series

The science behind the GMAW nozzle

Airgas - TWE1140-1302 - Tweco® .035 X 1.5 .044 Bore 14T Series