Ultimate Precision: Uncoated Carbide Drill by Precision Twist Review

This thing is very bad! Using the same drill, which is pretty hard at 7.5 amps, this drill went through hardened steel like it was wood, LOL! And I was just blown away, it didn't rip on day one, which is typical for me and was predicted by a lot of reviewers. So why 4 stars? Well the tip has a few dents from day one, from regular use, no stains or dents so I expect the bit will be useless after another day's work and at a top price you'll lose a star for should the deal.

So I had to make a Mekugi hole in the shaft of the katana I was assembling. Here's the problem: the blade was almost hardened carbon steel 1060. I used a regular drill and not only did the drill dull, but all I did was make a mark where I was going to make a hole anyway. I was concerned about only getting a carbide tipped drill as the shank was thick so I went with all of that. Essentially it was like a regular drill going through wood, perhaps with little effort. later only the ridges around…

Hello, I don't know much about drill bits except that they make holes in things. For example, until recently I didn't know about the various twists, flutes, etc. However, I have some training that requires the use of drills, and only for metal, only standard carbon steel of varying hardness. The first one took quite a long time, and part of that time I had to dry drill. Milling like with conventional titanium drills bought in hardware stores is no longer necessary and the drilling time is…