Basic low resolution STP drawings converted to STEP & IGES files, and finished off.

Having been let down by someone on here, I now need a set of axe head drawings produced in STEP and IGES.
The drawings I was provided with are relatively low quality, so I need them produced to a higher quality finish so the axe head can be machined. As you can see looking at the finish there are lots of flat edges rather than curves.
The files can be seen here https://drive.google.com/file/d/1LPjRISWu4R7exM3s5P6P6QHfaAeTqIcp/view?usp=sharing.