Our Mission: To protect, preserve and promote the natural integrity of Radnor Lake through land acquisition, environmental education and park support.
Chains up to 12 mm thick are generally portable: you can carry them around on your bike every day. The long ones will be really heavy though, so please check the weight. Above 12 mm the chains are more suitable as stationary locks: you would leave them wherever you lock your bike for long periods of time.
These are a heavier tongs than the ones above. They start with 3/8 x 1 stock for medium tongs and 3/8 (or 7/16) x 1-1/4 for heavy tongs. The forging starts with fullering the jaws, forming the joint to one side, then starting the back of the joint. Avoid thinning the the neck.