rotary hammer set to drill. hardly made a hole


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The one in the bathroom is soft (ceramic). The harder one is usually used on car porch floor. Inside house floor is white ceramic also. Easy to drill with tile drill bit like the spade shape. For porcelain, it is still hard.

Looks like porcelain .

i just checked the website, macam yes
walau 9.3mm thick....now i reach 1mm only

have u ever use those diamond core drill bits?
i wonder if its better in drilling porcelain .


mine the porcelain is kitchen table top. them those porcelain.. so hard to drill..

haha.. good luck.. get better branded quality drill bits. its better and last longer.

ok thanks, i just checked they have Makita ones at CT Hardware
think i will buy 6, one for each hole....

I have never use any diamond core drill bit because never drill on porcelain before. The guy who install my front door use a drill bit said to be fabricated by himself. Look like diamond core bit but with no diamond. Very old guy but very strong that he would not allow me even to help him hold my solid wood door

Yes he drill it slowly. Put water from time to time. Probably 5 minutes. Can't remember... long time ago . Anyway, since this hole is exposed, he do not want to have any rugged edge on the hole.

Just use tile bit and water with no hammer. The work to fix crack tile is not worth the risk.

to drill a tile without damaging it, easiest way is just to use an impact drill

start with a 2 or 3mm drill bit. whatever u want to choose. what u want is to create a very small pit

its the top part of the tile that is the hardest. once u get past that, u can do wahtever u want

i use an impact drill as i can have more control and the impact energy isnt as devastative as a hammer drill

u can also use liquid paper to mark the point. it helps to create some friction so the drill bit wont slip

Replacing tile is not a problem other than waste of time and additional non-value added work. Finding the same tile is big problem especially if the tile is several years production

Just use a nail (concrete nail is the best) and manually hammer it on tile to chip the surface a bit. This way the drill bit will stay on the spot. You can also put an electrical tape and mark the spot. This way also will make the drill bit tip stay at drilling point.

If use diamond core bit, drill at an angle so that the drill bit scratched the surface. Once the drilling point get deeper and deeper, just straightened up your drill and continue to drill the hole.

This post has been edited by Zot: Jan 20 2020, 01:09 PM

Wall tile where got so hard wor?

Maybe they used floor for walls? Mana tau?

Guys, wanna ask. How to identify genuine Stanley hand tools? Too many retail selling fake one. Sked sked pay same money but get fake item.

Just buy from authorized store then

I think nowadays quite common. If you go to showroom you can see the bath room is the safest place when lorry hit the house

i tried hammer a nail to just chip a starter hole - the thing just bounce off. Cannot nail....i think mine is supertile or something....
tomorrow try again with my tile bit just bought.


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I go back and will try on floor tile to show you. Floor tile is the most harden tile.

My wall tile really not that hard.

Good. Can share the result.

Maybe I should try also since I have plenty of ceramic tiles around. Just replace porch and pavement around the house. Just that right now quite busy with other things that need fixing.

OMG! finally can sau kung kor leen
this is what i did with the suggestions and help from you guys - thank you to all!

1. use a tile bit (see attached photo)
2. use my cordless drill with the tile bit
3. no need to use a nail to start a hole. just use the tile bit and drill slow onto the spot. the bit wont skid, infact it was very steady and accurate, and takes very little time to start a hole.
4. dip the tip in water every 5-10 seconds, you can hear it sizzle....
5. each blardy hole took me like more than 10mins, like never ending.
6. drill with the tile bit until at least 1cm which is the thickness of my tile. Many times I wanted to rotary hammer it halfway. I did with one hole and the sides chipped a little so dont take shortcuts. Make sure its passed the tile only use the big gun.
7. last but not least, dont drill tiles ever again....

see the tile bit compared with a new one after only 6 holes.
my body aches all over now....

This post has been edited by idoblu: Jan 21 2020, 03:03 PM


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