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  • The pack twist drill for stainless steel
  • The pack twist drill for stainless steel
  • The pack twist drill for stainless steel

The pack twist drill for stainless steel COSP 4.5

3.43 (7)
COSP 4.5
Package Qty.
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8.89 SGD
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Item Feature
Point Angle (Degree)
Helix Angle
Torsion strength
Flute Length l (mm)
Thinning Shape of Drills
X type thinning
Cobalt high-speed steel HSSCo
Overall Length L (mm)
Blade Diameter D (phi mm)
Hard steel Cast iron Stainless steel
Customer Reviews
5 star 1
4 star 3
3 star 2
2 star 0
1 star 1
Review Rating: 3.43
7 Customer Reviews
The reviews are automatic translation.
Steel hole drilling
From Japan
On 2019-06-13 21:19:48
The price of one is not cheap, but there is only one for SAS processing, and steel can be easily processed.
This review is about item#5800995.
Drilling of stainless steel
From Japan
On 2018-09-28 17:25:46
We are working on holes in stainless steel, but in the deep hole the length of the groove is short so we need to reduce cutting fishing to make kiriko
This review is about item#5802894.
Drilling of flat bar of stainless steel
From Japan
On 2015-06-16 15:30:41
As stated in the other person's writing, small diameter drilling of stainless steel is difficult. The precision of the drilling machine to be used · The cutting oil · the number of rotations will have a big influence. If you understand this it is a convincing product. I use it regularly.
This review is about item#05800742.
S45c square hole piercing
From Japan
On 2014-01-23 12:06:05
Because the diameter is small, when I drilled with desktop milling machine keeping the rotation at 1000 rpn, the place near the edge of the blade rather than the cutting edge brilliantly broke and broke. Even though I did not move fast. It was at least a salvation that the cutting edge did not remain because the hole was not so much open. This manufacturer believes that COSPA is good and uses various sizes, but was it a third-tier manufacturer to crush using it for the first time? I guess it is useless unless it is a top manufacturer.
This review is about item#05800803.
For perforating holes for nuts
From Japan
On 2013-02-20 17:48:26
Scheduled to purchase as needed for general drilling
This review is about item#05800742.
Work to widen the pierced hole
From Japan
On 2012-07-21 01:16:56
It is natural that 1 mm used by me is thin, but as soon as the sharpness of the tip got worse it broke.
This review is about item#05800742.
Drilling in stainless steel pipe (wall thickness 1 mm)
From Japan
On 2012-07-16 13:37:26
When drilling about five places, the cutting edge wears and the sharpness becomes dull. I think that it is suitable for the price, but it did not break, and when sharpening again a considerable number of holes could be made and the purpose could be reached.
This review is about item#05800742.