JanRwl@... wrote:
After about 3/4 of the way through the HSS blade was concave, with
almost no middle teeth remaining. Carbide tooth jigsaw blades are
available. A bit pricey but they probably last a hobbyist for ever.
>Reminds me when I went to cut a 900mm length of FR4 using a jigsaw.
>
>Yes. The cutters will last longer, provided that is not "glass-fiber
>reinforced phenolic". It is the glass fibers in FR-4 that do-up cutters!
>ONLY solid carbide drill-bits or router-bits can even be CONSIDERED to mill
>glass-epoxy!
>
After about 3/4 of the way through the HSS blade was concave, with
almost no middle teeth remaining. Carbide tooth jigsaw blades are
available. A bit pricey but they probably last a hobbyist for ever.