Make a brad point bit

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Great video. I however, have done a great deal of metal segmenting and I would recommend against using a brad point bit. In my experience they rip the metal out of the segment.
 
brad point bits in my experience are bad news in any segmenting, especially with metal if it's on any sort of angle. They have a tendency to catch and tear out the material if the wings catch before the point.
 
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Brad point bits are made for drilling wood. Poor quality bits or poor drilling technique cause them to wander and not wood density.

Twist drill bits 118 & 135 degrees are designed for drilling metal. Quality of the bits and poor technique will cause them to wander. Your 118 degree bits used for soft metals and 135 for harder/stainless steels.

Parabolic drill bits have different flutes or faster spiral designed for deep hole drilling in steel. We do use them for drilling wood, plactic, bone & stone.

Drill bit geometry, steel or steel alloys improve drilling and longevity. CNC machines use special alloy bits with 175 degree points, able to drill multiple holes without re-sharpening.

Researching sheet metal bits came up with some that look like a brad point bit blue in color. Then found a manufacturer that has something almost like a brad point but much different called turbomax tip.
http://www.irwin.com/uploads/documents/51_2013_Metal_eBook.pdf

At the end of the day would not take a twist drill and grind it into a brad point bit for any reason. Folks with Drill masters know can definitely change a brad point to split point in a few seconds.

I use brad point, twist drills, & parabolic bits to drill blanks, they all work well.
 
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