[quote author=vk6zgo link=topic=47932.m
Yeah, many tools are OK on softwood & "die the death" when exposed to hardwood.
I remember many years ago, having a popular woodworking book that advocated making the mating cuts in floor joists & the wall timber framing with a jigsaw.
Seemed like a great idea, till the jigsaw blade touched the jarrah---- clang! goodbye blade!
Jarrah is great wood, till you come to cut it--- "shame you can't weld it!"
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Just ran into this myself. Granddaughter broke the bottom step of the bunk bed. I had a small tabletop in the garage suitable to make a new step. Decided to make the cuts with my jig saw. Not sure what the wood was but the blade struggled to cut, bounced on initial cut and was a pain with the cuts being less than stellar. Stepdaughter didn't care, the step was replaced. Of course, the idiot behind the jig saw completely ignored the band saw that would have been more than suitable to do the job.
The saw was a recent purchase at a yard sale and had not even been used in anger yet outside of turning it on to make sure it worked. Lesson learned.