digging spike - where can I get one

[keith_765]

Have you tried an ex army surplus store.

[Rob Morley]

But the bar is considerably heavier than a big sledge hammer - just pounding the rock with the bar should be more effective.

[crb]

pounding the rock with the bar should be more effective.

Sorry, it isn't - I tried it!. Kinetic energy considerations?

CRB

[AJH]

Sounds like one of the driveall tools, I've only used the post bumper and bead breaker but they're hard work.

AJH

[Tim Lamb]

In message , crb writes

Farm use is generally for creating fencing post holes in relatively soft ground. As the sledge is to hand, a few whacks will bypass an inconvenient flint. Eye protection is rarely worn in these circumstances so grinding back the mushroom head is a sensible precaution.

regards