Circle Clamp

A circular band clamp, adjustable, with a tightenable stainless band .236" in width. 
These are very helpful while repairing cracks in caps & barrels. They also help out, with the addition of a LITTLE heat, in compressing sloppy threads from the outside of a cap. The band is shortened by tightening the wide knurled screw on the handle. This pulls the tails of both bands through the slot, tightening the band. We use stainless steel for our bands, while the competition sometimes uses brass which tends to stretch more than stainless and has about a 20% higher thermal coefficient of expansion than stainless (i.e., the band can loosen, especially if you are using heat). When using these with liquids, you may want to put a membrane of non-soluble plastic wrap between your workpiece and this tool. If you have used one of these to repair barrel threads, leave it on the threads until you have re-installed the section to prevent re-opening of the crack while putting in the section, then before removing the clamp, heat the entire assembly USING A 200 degrees Fahrenheit source and set it aside to relax & cool-down before removing the clamp. Moderate heat is your friend when doing pen repairs. DON'T EVER USE A HEAT GUN ON A PEN, no matter how adjustable it is!!!

REMEMBER: TRY NOT TO MESS WITH THE SHORT KNURLED FITTING; THAT'S FOR LOCKING THE ENDS OF THE BAND INTO THE SLOT IN THE CARRIAGE. USE THE WIDE KNURLED FITTING TO MOVE THE CARRIAGE BACK AND FORTH, TIGHTENING & LOOSTENING THE BAND. THE AMOUNT OF BAND (3") INSTALLED IS LARGE ENOUGH TO ACCOMMODATE DREADNAUGHTS AND MONTBLANC 149s. IF YOU BREAK, BEND UP, OR WANT A LONGER BAND, WE CARRY 3" & 6" REPLACEMENT BANDS.