I had to buy a drill bit specifically for tiles. It has arrow head shaped by black and decker.
But anyway, like what other bros here mention, not to use the rotary mode. Only use drill mode.

I been drilling some tiles before moving into my house.

Some tiles are very tough, you have to use the good tiles bit.

Thanks..

Went to home depot bangi yesterday but the boss told me they no longer sell SKIL product due the parts problem. He recommend me to buy black decker hammer drill, but not the rotary hammer. Is it good buy?

It is Living Depot ..

Hammer drill? No way... if you want to drill into concrete. There is Makita HR2470 at the store, last time I went there last month.

Hope others can list down a good hw stores here.

Hi guys,

I have worked before with HILTI Malaysia, a drilling machine specialist for 5 years since 1997. After having to read on several comments, I have noticed there is a slight confusion on the working mechanism of a drilling machine. A drilling machine provides drilling action but when working with hard base material like reinforced concrete, as to facilitate the drilling action, a hammering action is introduced into a machine.

The hammering action on the otherhand, is usually generated by either one of these 2 working principles, "Rotary Cam" or "Pneumatic Air". Rotary cam action hammering drill induces greater friction in the machine, thus causing lesser hammering action in the long run due to wear and tear and shortening drilling machine lifespan. When it comes to pneumatic air hammering action, which has very limited contact in the working mechanism of the machine, thus giving user very powerful hammering action and longer lasting machine.

In another words, the pneumatic air hammering drill will cost you more compared to rotary cams action hammering drill.

FYI, SKIL is a lower end machine compared to Black & Decker. Always choose to purchase a BORCH machine or switch to HILTI if you are a heavy user and of course, if you have more budget allocation.

Happy Drilling!

This post has been edited by felixwang: Dec 21 2011, 06:43 PM

Thank you very much for the very valuable infos.

There several type of hammering technology.
1) Pneumatic (compressed air)
See my previous post for the rotary hammer's mechanism.
http://forum.lowyat.net/topic/2051914/+120#

The compressed air push the striker and hit the bolt, and transfer the punching power to the drill bit.
Originally it use compressed air from air pump, and still being used for very heavy duty task. Then, the advancement in technology, make it possible to create the similar mechanism, but using electric motor and more portable, not to mention more cheaper.
This mechanism can moves drill bit for about 5-20 mm every beat. Rotary hammer has lower bpm (beat per miinute) compared to typical impact percursion drill, but, it chisel more quantity into concrete at the same period of time.

2) Slipping gears. Percussion type hammering.



This simple ribbed gears create ripples, which mooving drill bits about 1-2mm. That why you can see 45000 ipm (impact per minute), which generate vibration which is fatiguing.

Most for the readers in this thread are DIYers and hobbyists, which have VERY LIMITED purchaing power. . Yes, I konw HILTI, Bosch is very good products, but let's customer choose. Keep us informed, and make us make a good choices and purchases.

Thank You

This post has been edited by bahathir: Dec 22 2011, 01:25 PM

Bought the Skil 1715 for RM309 inclusive shipping. It comes with 3 + 1 bits - 6, 8, 10 mm and chisel. Doesn't have a very long power cord though; approx 2m.

Great, and welcom to LYN's Rotary Hammer's Club.

Looking forward to read more about your rotary hammer.

anybody use diamond drill bits to drill through tiles before ?

im planning to order a set from ebay..

how do we know if its real diamond drill bits ?

No need order from ebay. CT Hardware selling.

their PRICE ? crazy or reasonable ?

cause i can get a set of 16 sizes for about 250 bucks

But you won't be using it all right? I have not check the price. Did not want to buy what not going to use.

better to have all size when u need it rather then need to use it don't have..

just like bought a rotary hammer with hammer function just incase i need to use it wahahhaha

will drop by and look see look see the price hope i won't get heart attack...

Actually, the diamond is the synthetic diamond. We know that the natural diamond is just a lump ofr carbon/coal that survived millions of years under pressure and heat in earth.

The material for 'diamond' cutter might be boron nitrate, or other hard combinations.

I saw 6mm diamond core drill bit, at 'Keris'or ;Tukang' harwdware stores in Bangi. The price is about MYR19. MYR250 for sets of diamond cores are reasonably cheap.



Ref
http://en.wikipedia.org/wiki/Synthetic_diamond

yeah sure la not real diamond.. this one is all more toward industrial use diamonds , just worried about the quality thats all ..

not sure to get branded one from 365 drills or some OEM from ebay... lol

Black & Decker 450w 10mm VSR Hammer Drill ok or not for normal use ?

which model is that ? can't seem to find it in B&D website ..

whats the price/function and all dont have details cannot give u proper comment...

so far.. makita 2470 i say is the best bang for bucks.. unless u want top up a little extra to get one like bahatir's type..

KR45P14. if not mistaken ACE hardware selling @ RM199. Makita 2470 too high for me. Just looking for entry level ones.

This post has been edited by ahter: Dec 24 2011, 10:11 PM

actually entry level one any one will do.. but get a trusted brand la.. eg bosch comes to mind..B&D also can...

if you are in PJ, check out Centerpoint DIY shop (next to Subway) at Centerpoint Bandar Utama. iirc they are having promo for the same B&D with FOC drill bits set. <RM200 RM179 i think.