Working With Steel

I'm making some presents for two family members, my grandson Aidan, and my daughter Tracey. But this time I'm using steel for my material. This is cold rolled steel and my pieces are five inches square by 3/16" thick. I milled both sides just to clean off the scale first (black stuff).
 

Here I'm center drilling a series of holes but they won't all be the same size when I'm finished.
 

Here is what I have so far. The center hole is 1/2" and the outer holes are 5/8" diameter. I also gave each hole a small chamfer on both sides.
 

If you look close, you can see a small dimple near each arrow. Those will be used later.
 

Here is a close-up of one dimple. To produce each dimple I used a small center drill.
 

I made some tooling out of aluminum to locate my 5/8" holes with. This is so I can index my work piece exactly where I want it.
 

Here is where the dimples come in, I'm using them to accurately produce some layout lines.
 

I used my hacksaw to cut near the lines, roughing off the excess material.
 

Here is what they look like after many sawcuts.
 

I made some 5/8" pins to locate my work pieces. In this configuration I'm cutting on the backside of all six arrows first.
 

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