Question:
I'm going to buy a drill bit, so a high speed steel twist drilll bit will be ok to drill this?
anonymous
2010-07-18 12:42:03 UTC
I'm going to buy a drill bit, so a high speed steel twist drilll bit will be ok to drill this?
I've asked previously but wanna double check.
I need to drill through dry wall/plasterboard and also drill through the stud (which i'm guessing is made of 2x4 wood). So will a regular high speed steel twist drill bit work to drill through both of these material?
Five answers:
jpopelish
2010-07-18 13:01:38 UTC
High speed bits are intended and optimized (point shape, rake angle and material) for drilling hard, tough metals like low carbon steel. They will certainly make a hole in plaster dry wall board and wood and will not be damaged if you hit a nail. But they won't drill as clean and smooth a hole as a bit sharpened in a pattern better suited for these soft materials. Their tip will tend to wander around a bit as you start the hole and the hole will come out a bit oversized.



You may be able to find (and for less money) brad point drills (they have a little sharp point to stabilize the center of the hole as you start, and cut a circle out, first, then clear the rest of the hole)

http://www.amazon.com/Steelex-Plus-D2340-4-Inch-Point/dp/B0000DD1YN/ref=sr_1_7?

or pilot point bits (with a smaller diameter drill point at thew tip)

http://www.amazon.com/Dewalt-DW1263-14-Piece-Cobalt-Pilot/dp/B00004RGVZ/ref=sr_1_1?

are made for softer, and fibrous materials. These are often not made of high speed steel, in which case might get dull if you hit a nail.



They may be called, simply, wood bits.



--

Regards,



John Popelish
Numbat
2010-07-19 03:40:21 UTC
Well, lets look at this. HS drill bits are made for steel or similar. They are generally not particularly long (you haven't mentioned the diameter). Studs are generally mounted so that you would be drilling into the largest dimension (say 4"). That together with the plasterboard thickness may be greater than the working length of the drill.



If you have a look at woodworking drills (such as speedbores) they are usually long enough for full penetration. I suggest you use these.



http://www.drillspot.com/brand/Speedbore



In my experience, twist drills do not adequately clear the wood swarf from the hole requiring constant extraction. You should use the tool designed for the job.
billrussell42
2010-07-18 19:48:08 UTC
Wow, you have been asking questions on this project for many days. Just buy any drill and do the job. Wallboard is very easy to drill through. You can hammer a nail to make a hole if you want. Or most screws will self start and don't need a hole at all. Once you get through the wall board the stud is just soft pine, easy to drill through.



This is a project that should take 10 minutes, not 10 days.



Although I suspect you will find the stud elusive.



Or is this all a troll joke?



.
Irv S
2010-07-18 19:44:28 UTC
A standard drill bit will be fine.

Dry wall will dull any bit, so don't go for the more expensive one.
monophoto
2010-07-19 00:03:15 UTC
Yes - these materials don't require special bits. You can use the least expensive bits available at the home center.


This content was originally posted on Y! Answers, a Q&A website that shut down in 2021.
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