I'm building a HPD30. I'm drilling holes in the axle tubes to weld in inner axle sleeves. As I am drilling the holes I notice everything is magnetized. I have metal shavings from the drilling stuck to the axle tubes, drill bit, center punch, etc.
Is this normal? How do I go about demagnetizing everything. I have an AC/DC Lincoln stick welder, so I could wrap the housing with the electrode cable. What polarity would I want?