#12 in Cutting tools
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Reddit mentions of KEO 53512 Cobalt Steel Single-End Countersink, Uncoated (Bright) Finish, 82 Degree Point Angle, Round Shank, 5/16" Shank Diameter, 1/2" Body Diameter
Sentiment score: 2
Reddit mentions: 2
We found 2 Reddit mentions of KEO 53512 Cobalt Steel Single-End Countersink, Uncoated (Bright) Finish, 82 Degree Point Angle, Round Shank, 5/16" Shank Diameter, 1/2" Body Diameter. Here are the top ones.
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- Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys
- Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications
- Round shanks allow use with a wide variety of toolholding systems
- When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
- 82 degree angle
Features:
Specs:
| Height | 0.5 Inches |
| Length | 3 Inches |
| Number of items | 1 |
| Size | 1/2 in |
| Weight | 0.05 Pounds |
| Width | 0.5 Inches |
If you're working with soft materials, you want something called a 0-flute countersink. They're designed for merely deburring metals, but in wood and plastic they make beautifully clean countersinks. There are several brands, but Keo is the one I'm most familiar with and can endorse.
82° if you mostly work with Imperial hardware
90° if you mostly work with Metric hardware
Yup. I just got done using one of these abaout an hour ago on some AL plate. Works like a charm. Don't get the Harbor Freight ones though they are garbage.
Amazon has them too.