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  • Concrete drill Twist-drill bit B type for vibrations
  • Concrete drill Twist-drill bit B type for vibrations
  • Concrete drill Twist-drill bit B type for vibrations

Concrete drill Twist-drill bit B type for vibrations B4.8x85

4.45 (53)
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4.99 SGD
Shipped after 2018-06-25
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Item Feature
Overall Length (mm)
Using Electric Drill Suitable Rotation (min-1[r.p.m])
2000 - 2500
Blade Diameter (phi mm)
Work Material
Concrete, block, brick, mortar
Concrete, block brick and mortar, Concrete, block brick and mortar
SKS material (alloy tool steel)
Effective Length (mm)
Shank Diameter (phi mm)
For diameters up to 11mm is straight shank. For diameters larger than 11.5mm is reduced-shank., For diameters up to 11mm is straight shank. For diameters larger than 11.5mm is reduced-shank.
Compatible Motor
Vibration drill (modes of use/ vibration and rotation)
Customer Reviews
5 star 37
4 star 7
3 star 6
2 star 2
1 star 1
Review Rating: 4.45
53 Customer Reviews
The reviews are automatic translation.
Anchor's pilot hole
From Japan
On 2018-05-17 02:16:20
Although it is cheap set thing but there are ten girths, since the anchor pilot hole diameter wanted to be hit was 10.5, I bought it intentionally. I am looking forward to see what happens in the future.
This review is about item#02277143.
Used for anchor bolt under hole drilling of car stopper on garage concrete floor
From Japan
On 2018-04-21 09:14:09
This time for the first time drilling work perpendicular to concrete floor with vibration drill. Although it was drilling work of only 4 places, it was completed very quickly with cooperation. I chose a bit with the same diameter as the anchor bolt for the first time in amateur work, so the vacant hole became bigger than the anchor and it became slightly faint.
This review is about item#2277186.
Puncture of concrete wall
From Japan
On 2018-04-04 15:37:22
I used a 6 mm shape object. I bought a hole for a plastic plug on the concrete wall. Although only 10 holes are drilled, although the price is inexpensive, the hole opened easily. I think that it is advantageous for users who do not have much use frequency like me. Next time I buy 8 mm and I'm thinking of stopping the hardware with wedge anchor.
This review is about item#2277414.
Slate roof drilling
From Japan
On 2018-03-12 15:53:25
I used it to drill a hole in the slate roof of cement raw material, but it worked perfectly well with sharpness. It is a very good product.
This review is about item#2277432.
For anchor installation
From Japan
On 2018-02-26 16:39:26
I was worried because the base was quite hard, but I could open it safely in 17 places. I bought another one at the spare, but I did not use it.
This review is about item#2277204.
Concrete pavement
From Japan
On 2018-02-08 15:42:32
I used the reinforcing bars in the connection of the existing concrete and used it, but it was usable normally.
This review is about item#2277143.
Pinning to the road.
From Japan
On 2018-01-05 18:30:17
I think that it is very good in cost performance. it's the best.
This review is about item#2277441.
I am using it for the prepared hole of the muscle
From Japan
On 2017-11-27 20:03:30
It is truly a drill bit of Unika. It is excellent in durability. It is safe domestic quality. Also, I did repeat.
This review is about item#10037903.
For myself
From Japan
On 2017-10-29 11:14:11
I used it with the drill of BOSCH but it is very satisfying it is very easy to use and very good thing without licking the cutting edge.
This review is about item#2277186.
Installation of outer wall siding
From Japan
On 2017-10-27 18:41:48
Sharpness can be used without problems. And only durability.
This review is about item#2277441.