Drawing A Bead
By Lex Dodson
Strange things can make a Toolmonger’s heart beat faster, and one of them is high-quality aluminum work: fine metal carefully sheared, bent, and welded with the precision of a Swiss watch. One of the most common places you’ll find such work is on custom radiators, which require some really superb work from skilled fabricators. Beaders like the one above are one of their tools of the trade, used to put a raised bump a short distance in from the edge of a tube to aid hose retention. With some cooling and induction systems running pressures upwards of 30psi, this bead is a critical feature, preventing hose clamps from sliding right off even if they’re properly tensioned.
If you’re working on a garage project that uses fluid-carrying aluminum tube frequently, you can probably justify the rather steep $150 price tag Graham Tool, Inc. slaps onto their beader. Fabricators and professionals should have an easier time with the sticker.
Large Tube Beading Tool [Graham Tool, Inc.]
November 9th, 2009 at 3:18 pm
We use tools known as pipe groovers - made by Ridgid and Reed - particularly for sprinkler system piping connected with Victaulic couplings.
These are the big brothers (in size and cost) to the tool shown here
November 9th, 2009 at 3:21 pm
Very nice tool. This is a copy of the Parker Appliance Co.. tool. They had a 4 tool ( as I recall ) set. Used on pre jet age aircraft. There was lots of drain lines on the engines and other areas. They just used a worm clamp for the hose extended out of the cowl.
November 9th, 2009 at 3:23 pm
Just seen the updated WWII tool logo.