Quick update.
Had a refund, and a reply
Hi Steve,
Our warehouse team have said that our stock is correct according to measurements with a simple calliper and is not bent as shown on the customer pictures. It probably got bent in transit due to poor packaging.
- (101.68 KiB)
Yeah...... thing is it's bowed along the thick edge, not the thin.
Just if anyone is interested, I got talking to a retired toolmaker at work, he said he'd seen that often. It comes from being surface ground incorrectly.
Instead of putting the bar on the magnetic table at an angle to the grinding wheel (so that the wheel only has intermittent contact), they've placed the bar at 90 degrees to the wheel, so when ground the wheel travels down it's whole length in one go.
Heat builds up in the bar, the centre of it expands, more material is ground away, and when the bar cools and shrinks you're left with a hollow.
Still, alls good now