Thomas C. Wilson Tube Tools
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Linsen Expander

Linsen Flaring Expander — 3/8 to 1-Inch Outer Diameter

Flaring Expander

The Linsen Expanders are power-driven tools designed for making tubing connections without fittings. It enlarges the end of a tube, leaving .015-inch clearance for slip fit, so that another tube can be inserted and soldered like a sweat fitting. It is excellent for short bends, U-turns, copper, brass, aluminum, or thin steel tubing.



Tube OD Expansion (Inches) Drive Dia. Expander Part No.
Inches (mm) Dia. Length Inches
3/8 (9.5) .390 5/8 1/4 75520
1/2 (12.7) .515 5/16 75521
5/8 (15.9) .640 3/4 75522
3/4 (19.1) .765 3/8 75523
7/8 (22.2) .890 75524
1 (25.4) 1.015 1 75525