The B&D KR45P14 is an impact drill. If you want to driil your brick wall for typical fixing or anchoring 6,8.10mm, I think it is just enough. But, as soon you hit the concrete beam, especially when you want to drill to fix curtain rail, or concrete cement wall or ceiling, you may find it quite troublesome or difficult, like what I had demonstrated in the my youtube clip.

Yeah, the rotary hammer is more expensive, but, it really helps to make drilling work faster and less painful. Honestly, since I bought the rotary hammer, I feel very 'energetic' and very happy to do any drilling tasks and really looking forward for another hole to drill . Previously, with impact drill, I felt,'Waa.. drilling??... aaaarrgh, another hole??? Oooo...ooo.. aarrrrggh.....' it was so boring and metally frustrated. he heh he.

The major differentiate between rotary hammer and impact drill,
1) Chuck: SDS+ vs keyed/keyless chuck
2) Someof the rotary hammers have hammer only mode.
3) Most of the rotary hammers can drill concrete using drill bits bigger 13 mm. If it is 'up to 13mm', it most probably the impact drill.

Finally, it is up to you... You can use impact drill to drill holes into concrete, and just considers the benefit of the rotary hammer. If you want to drill into steel and wood. impact drill might be a better choice, because it can spin/rotate faster.

Side notes:
2 days ago, I went to Ace Harware @MINES. and I found
1) Woodcraft branded SDS+ -> 6.25mm hex adapter : around MYR30, so we can use typical power tool's bits with SDS+ rotary hammer.
2) Woodcraft branded drill dust collection attachment : mmm... around MYR300

Thank you.

This post has been edited by bahathir: Dec 26 2011, 05:02 PM

tq for the comments/advices.

yeah saw that also.. really.. giving the heart attack feel...

rather use the cheapo envelop trick hahahah

jinXXX : So how do you find the effectiveness of the envelope?

Yup, the envelope trick is better. but, if someone is doubt about the effectiveness,
my Panasonic 1500W vacuum cleaner has more sucking power

living depot bangi is having sale now.

Makita HR2470 RM499 - free drill bit set, chisel, adaptor set & t-shit
DeWalt D25012K RM399 - free t shirt nia.

This post has been edited by ahter: Jan 6 2012, 02:41 PM

Hi guys...I dunno anything about drilling but is the black n decker 13mm vsr hammer drill ok for home purposes? I just wan to get some tools to do simple work like hanging wall picture frames...mirror...etc

imho more than enuff. I own bnd 13mm hammer drill as well. most likely you are drilling 6mm and 8mm hole only.

quite good.. if you got use doubleside tape

Just went there in the morning... The price for HR2470 is up already.. MYR629 !!! It is on the barcode sticker... I don't know whether you have to ask for the 'sake's price'

They also got,
Bosch DFR2-18RE (18mm) @ MYR 429
AEG 22E (?) : MYR 499

Yeah, the B&D impact drill is still good for typical wall drilling... but, a bit struggle when it hits concrete beam/slab. Example... finxing/anchoring curtain railing. If you lucky, you can use the impact drill without any problem.

Rotary hammer and impack drill can do drill job, but... the experience and feeling are completely different.

Happy holiday and be safe

This post has been edited by bahathir: Jan 20 2012, 04:15 PM

+1... nobody got new toys to share ? lol

Haha

Erm I have the Bosch 2-26DFR Rotary Hammer. Good stuff, never let me down, very easy to use esp when you are doing a small job.

I was actually searching for differences btw hammer drill vs rotary hammer, even I already have the Rotary Hammer out of curiousity.

There are some youtube clips showig the 'power' of rotary hammer, and at the end, the rotary hammer wins for concrete/masonry drilling.The CORDED rotary hammer always outperform CORDLESS rotary hammer, in term of speed and PRICE.

Last holidays, I drilled more than 30 holes into the concrete block to experiment with different speed and techniques. Even after more than 100 holes into concrete, the drill bit still good as new. Compare that to impact drill.

I also drilled 2 holes to mount speaker to wall, and seriously, I flet thw wall is too 'SOFT' for rotary hammer! So, I was drilling at 1/4 - 1/2 of the full power, and enjoyng the drilling, and took 5 seconds at very relaxed paced. At full power, it only rooks less than 2 seconds.

HR2470 and DFR 2-26 are for heavy duty professional use, and it make 'small job' just like playing toys

I my case, I am using HR2810, rotary hammer to drill into concrete/wall. and Makita TD-0101F 'impact DRIVER' for screw/nut driving and hole drilling into wood and metal, so, I am covered for most of my DIY jobs.

Thank you.

This post has been edited by bahathir: Jan 27 2012, 03:39 PM

would be using an "impact driver/scrwedriver" much more better than using a hammer drill minus hammer mode for screwing and drilling ?

the only plus side seems to be the size only.. but power/torque and etc a hammer drill sure pawns the screwdriver range/impact driver right ?



This post has been edited by JinXXX: Jan 28 2012, 11:00 AM

Exactly. The Impact driver is NOT same as the impact drill. it does not have the 'impact'/hammer mode. It also light weight and smaller. Previously I used the impact drill for screw driving, and it was difficult. Impact (screw) driver is much-much easier to drive screw, because of the size and weight, especially at tight spaces.

About power and torque...
My Makita TD-0101F (corded) has more than enough torque to rip/snap off the screw head. Dont be surprise, it already broke a tough Vanadium-Chrome Philips driver bit!!!. It only rated at 100N/m, which IMHO is not as torquy as 165N/m of highend CORDLESS brushless Makita impact driver. I If 100Nm have that kind power, then imagine what 165Nm can do. In contrast, impact DRILL is difficult to control it's torque, and this make screw driving much dificult. It also easily can damage screw's head.

So, based on my limited experiences, I recommend to get a good rotary hammer and impact DRIVER Its really make my jobs easier and enjoyable

This post has been edited by bahathir: Jan 28 2012, 03:58 PM

thought when it says impact driver there is a slight "hammering" like those workshop air pump thinggy that they used for removing the wheel/rims bolt ... so its just normal pusing pusing aka electric screwdriver la thanks for the feedback

somehow i manage to control my impact drill's torgue must be quick on the trigger lol press abit slow-slow.. press more fastt

The higher torque type of impact driver is call impect WRENCH. Its rated from 200 to 2000 Nm. Usually it used in automotive. A small cordLESS impact wrench also capable at 650 Nm!

This post has been edited by bahathir: Jan 28 2012, 08:06 PM

here's my guess about impact wrench and impact drill/rotary hammer..


the impact drill or rotary hammer hits directly perpendicular to the drilling plane, ie knock the drill bit into the target area.

impact wrench, instead of knocking the drill bit into the area, it knocks it clockwise or anticlockwise, following the turn.

Yes, you are right.

Here is a good youtube clip explaining how impact driver/wrench works.


Impact driver in action...


Enjoy, and thank you.

This post has been edited by bahathir: Jan 29 2012, 09:58 AM

i've seen tesco rotary hammer for about rm250.. good or not tesco brand?

I think better get Skill 1.. around 300.. At least low-end branded 1.

BTW, this is 2nd time surveying for my rotary hammer. Last time decide not to buy. Now got some budget and some works need to be done so I looking back and luckily found this thread.

My quick survey in Livin depot bangi today

Dewalt 25012 RM 428
Dewalt 25123 RM 555
Makita 2470 RM 529
Makita 2810 RM 740
Bosch 2-26DFR RM 7xx (forgot to write down)

My budget around 600.. Prefer Bosch brand but seems Makita quite cheap.. BTW living depot can as for discount or fixed price?