Key Blanks 1137B/1137S Chicago Vancouver

Round keys are a different animal. A tubular key has a hollow barrel with small notches cut into the end face around its circumference, and it pushes a ring of pins in the lock rather than lifting a row of them. You will find this style on vending machines, coin boxes, display cabinets, bike locks and some padlocks; our older record lists the 1137B/1137S for Master padlocks, and the name ties it to the Chicago tubular format. Because the cuts sit on the end of a tube, a flat key duplicator cannot copy it. We use a dedicated tubular machine that reads each notch depth and reproduces it in the right position, lined up with the indexing tab so the key only goes in one way. To check you have the right blank, compare the outside diameter, the number of cut positions and the position of the tab with your key. Tubular sizes vary more than people think. If you have lost the only key to a tubular lock, a copy is not possible, but the lock can often be decoded or replaced. Call 604-734-7233 and tell us what the lock is on.