Hi Mf,

Yes Mf just snapped after starting the mower ,the mower was still over concrete and hadn't got to the grass.

Originally Posted by Mowerfreak
Is there a way to examine steel to see the grain direction? I can't recall seeing grain on mower blades.
Might take a look.

You'd have to take the paint off if a bar blade then polish the steel to a high shine and use a magnifying glass or a microscope to look
at the grain direction and if you still can't see the grain use some acid to etch the metal so the grains will appear.

I would say bar blades are meant to be made the same way as swing back blades with the grain of the steel in a lengthwise direction .

Below is a Bar Blade I bent when I hit a drain lid ,it didn't even bend the crank ,it must be an example of the grain lengthwise
as it would have snapped otherwise.

I think the Victa bar blade that snapped is another example of China making parts incorrectly or selling parts
they know are rejects.

Cheers
Max.

Attachments
Bent bar blade.jpg (91.49 KB, 54 downloads)
how to see steel grain.png (105.89 KB, 50 downloads)
metallographic preparation.png (9.26 KB, 50 downloads)