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Say maybe just an old used axle? You are not actually cutting a hole with it...but listening more as a sounder... right? would be safer to carry around if not sharp.HHD
Dependin on how hard ya hit the ice with spud,,we usally go 2 hits and look at cracks you make to determine the thickness and way the ice breaks up,,if cracking is close and tight its pretty dense,,if spread out around a foot area,,watch yourself.definatly bust a hole with it and measure with hands too this kind is not good,,lol http://smg.photobucket.com/albums/v634/IndyBassin/?action=view¤t=crumpliniceinjan.flv watch they way the ice breaks,,ya see that,,back up......
Brett, I liked the one Genz had in that video. It was long enough you could just "Pole-vault" right over the bad ice!!!