When i drill into concrete, my drill bit starts to wander all over the pace, im not sure if im not putting enough weight behind the drill or if its just not powerful enough. im using a 14.4 volt cordless and got told once than could be the problem but it happens with a hammer drill also. PLEASE HELP!!!!
2007-10-14 22:05:45 · 24 answers · asked by Robbie 1 in Home & Garden ➔ Do It Yourself (DIY)
I drill all different types of walls with a 14.4 drill, with no problems. I suspect that you are either not pressing hard enough once the hole has started, or your drill bit is blunt or bent. Try a new bit. Also make sure that you keep it square to the surface you are drilling.
2007-10-14 22:14:37 · answer #1 · answered by jayktee96 7 · 1⤊ 0⤋
Yes, you need a hammer drill. The regular drill does not have the vibrating feature of the hammer drill. That make the bit cut faster and at the beginning stay put. To keep the drill in place, it is also a good idea to have a good footing, and yes put your weight into it. The other thins is to drill a pilot hole with a much smaller bit, this keeps the bigger one aligned, and it is easier to start. If you can't get a hammer drill (you can rent then at the Home Depot) using the regular drill will be very frustrating, but you will eventually drill the hole. It will also eat your bits faster.
2007-10-15 06:23:17 · answer #2 · answered by 747pilot 3 · 0⤊ 0⤋
All the responses so far are ok, except that I don't think you should put all that much weight on the drill. You might burn out the motor ! Of course you need SOME weight, not too much, but not too little, either !
Try making a small hole first with a hammer and a nail. You can be precise this way. Then insert the drill bit into the hole. Try using, as suggested, a smaller bit, then progressively larger.
Your drill is sufficiently powerful, although it will take longer, of course, especially into, e,g, brick, than with a mains-powered drill.
2007-10-15 05:32:22 · answer #3 · answered by archery_dave 4 · 1⤊ 0⤋
if possible use a mains powered drill,its a good idea to lightly punch a hole where you are going to drill,this will stop the drill from slipping,and when using a masonary bit,use the drill on slow speed as these bits are not designed for high speed work and will over heat and this will destroy the head of the bit.
Start off without the hammer,and then switch to the hammer,if still having problems,try using a smaller bit to start the hole and then change to the bigger one to complete the job
2007-10-15 13:51:47 · answer #4 · answered by josephrob2003 7 · 0⤊ 0⤋
i know its sounds daft but is your drill going the right way ..in other words its not going backwards!..I'm a builder and even i have done it ..if its OK then either the bits are worn out ..i assume they are masonry bits ..a 14 volt cordless is not man enough for drilling a lot of holes in concrete ..but it should be capable of drilling a few .don't use too much pressure so that you slow the drill down ..i also am assuming that the cordless has the hammer switched on
2007-10-15 07:16:25 · answer #5 · answered by boy boy 7 · 0⤊ 0⤋
just another possible explanation. Is it possibly reinforced concrete? your drill could themn be hitting a reinforcment rod. It would be a bad idea to drill holes in them! And it may be poor quality concrete with lots of sand and not much cement and large aggregate. Then the drill would go through the mortar easily and deviate when you hit a large hard stone.
Personally I have not had much luck drilling masonry with a cordless drill. Nowadays I always get out my extension lead and use a mains drill!
2007-10-16 03:42:41 · answer #6 · answered by man of kent 5 · 0⤊ 0⤋
The type of drill doesn't matter. You should be using a concrete drill bit. If it wanders, it's at the beginning of the hole. If you are drilling a small hole, 1/4" or less, use a punch to make a deep dimple in the surface, your drill will stay in the dimple and not wander all over the surface. Also, ensure that your drill bit is perpendicular to the surface and the pressure you apply is in line with the drill bit.
If your hole is larger than 1/4", use a punch to make a deep dimple in the surface and drill a small pilot hole before drilling the larger hole. Your larger drill bit will have a tendency to follow the pilot hole.
2007-10-15 09:15:42 · answer #7 · answered by C2020 2 · 1⤊ 1⤋
How in the world could it go wrong with a hammer drill? You need to put as much weight as you can behind the hammer drill if it's starting to drift on you. Maybe the cordless sucks. Borrow a corded 'Bosch' hammer drill if you don't have one.
2007-10-15 05:15:43 · answer #8 · answered by Anonymous · 0⤊ 0⤋
first you need a hammer drill, it does what it says, hammers the concrete while drilling. second you need a tungsten tipped or very hard drill bit, apply pressure but not too much as this will only get the bit hot. use a medium speed on the drill. if its re enforced concrete then u need an industrial drill
2007-10-15 15:10:57 · answer #9 · answered by T S 1 · 0⤊ 0⤋
It would appear you are using the wrong drill/bit combo.
What you need is an SDS rotary hammer drill. Not your normal Black & Decker hammer drill.
Where I live all the walls are re-inforced concrete. I had to buy one, and no not a lot of pressure required.
Study the pictures below.
2007-10-16 06:58:41 · answer #10 · answered by Anonymous · 0⤊ 0⤋