heavy duty snow chains

[damon]

i have 2 sets of heavy duty (come off a grader) chains and im wanting to swap one set for some lighter ice breaker chains. i have 225/70/16 tyres and have rebuilt one set to fit properly the ones im wanting to swap will fit 750/16's and with a little modifying could fit a number of tyre sizes i have a few spare bits and pieces. im no engineer but i cut n welded to build my good set no worries so if anyones intrested pm me ceers Damon

[IcedJohnno]

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What type of breaker do they have on them?