COBALT STRAIGHT DRILL Ⅰ TYPE COSD 4.6
Ship pack of
Point Angle (Degree)
Blade Diameter D (phi mm)
Thinning Shape of Drills
Overall Length L (mm)
Flute Length l (mm)
Geometry of Drill Flank
Cobalt HSS (high speed steel) HSSCo
Structural steel, carbon steel, alloy steel, Harden steel, die steel, stainless steel, cast iron, aluminum alloy, non-ferrous metals
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5 Customer Reviews
The reviews are automatic translation.
Pilot hole with hand drill
On 2018-02-28 16:27:49
3.5mm Although it is good to use it is easy to break compared to other companies.
On 2017-12-01 14:58:39
Sharpness is good, it is good for long-term use
I would appreciate it if the blade length is a little longer
Drilling of iron plate
On 2017-09-30 19:16:11
Convenient because the cutting edge does not slip without using a punch. Also sharpness is outstanding and other things can no longer be used.
Used for drilling taps
On 2015-02-02 17:21:13
Quality does not have any problem at all but I am using it all the time but it is stickier than the products of other companies and it is more thankful if the amount of money that goes well is a bit cheaper ...
Used for drilling aluminum plate, iron plate.
On 2010-12-17 14:25:06
Since we have been using it all the time, the quality is good. And most of all, the price is attractive. It is bad for past suppliers, but if thousands of yen is cheaper, I will buy it with Monotaro san. I wish I knew it sooner.
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