How to make a good saw blade
Linbide puts its saw blades through a couple of steps that some other manufacturers skip, which adds quality to its products. The laser-cut and annealed blades are put through a rolling machine, which ensures that they are perfectly flat. A blade with even a minute wobble or that is out of balance will not make a clean cut and will deteriorate quickly.
An operator also cuts the centre hole accurately on a lathe to ‘h7’ tolerance. The raw laser-cut hole can never be that accurate — another ingredient in achieving greater balance.
And, as noted in the main story, copper rivets in the blade are an indicator of quality. It’s an extra step and an extra cost but makes a huge difference.