New USA quality drill bits challenged drilling China's Steel
New USA quality drill bits challenged drilling China's Steel vs China's Titanium Nitrate coated.
1. Why, is the China's steel so hard that it snaps vs shearing or bending and resist drilling ( high carbon contents)?
2. It's hard to think they are drilling before the metal is formed to reduce the challenge.
3. Hard steel can also be why you see more riveted joints due to the steel resisting good welds also.
4. The angle I thought was a surplus of iron from bed frames has become a liability to use.
5. Can the Titanium Nitrate coated bits be sharpened to quality again vs purchasing another?
6. The high carbon contents IMO in the steel I first noticed in the mid 80s seems worse now.
7. Steel I have tried to recycle from products (bed frames) appears harder than bar stock to be used.
8. Harbor Freight's Satisfaction Guaranteed has been reduced; I use cutting wheels/bits, hard tools.
9. Using the steel in non stressful applications will be my use as I wind down my metalworking.