What drill bit should you use for metal?
What drill bit should you use for metal?
Regular drill bits can’t cut through steel, so you need a heavy-duty, hard drill bit to do the job. There are two types of drill bits that you can count on for metalworking projects: titanium and cobalt. Titanium drill bits are high-speed steel drill bits (HSS) that have a titanium oxide coating.
Are titanium drill bits good for metal?
Titanium bits are suitable for drilling iron, steel, aluminum, magnesium, and wood. Titanium bits are great for general purpose drilling in a production environment because they drill quickly.
What size drill bit do I need for a number 8 screw?
The closest match you can get to the diameter of a #8 screw without the threads is a 1/8” straight drill bit. This number translates to 0.125” or 3.175 mm. If you need to create a tapered pilot hole, opt for a tapered bit with a slightly larger diameter. An 11/64,” 0.171,” or 4.36 mm bit is your best option.
What is a 7 32 drill bit close to?
| Drill Bit Hole Diameters | ||
|---|---|---|
| Metric Size | Fractional Size | |
| 5 mm | .1968 | 7/32 |
| 6 mm | .2362 | 15/64 |
| 7 mm | .2756 | 1/4 |
How do you know if a drill bit is for metal?
The Color of High Speed Steel You can distinguish an HSS bit by its black color — a conventional steel bit is chrome. If you’re drilling through hardened metal, even an HSS bit can wear out quickly, and you may need one made from tungsten carbide or titanium.
Are black oxide or titanium drill bits better?
I’m sure that you won’t be surprised when I say that titanium bits have a significantly longer tool life than black oxide ones. Compared to a bright finish bit, a titanium bit lasts up to 6 times longer. In other words, if you want to get the most value for your money, titanium drill bits are the way to go.
