G standard twist drill
Geometry of Drill Flank cone
Coating G coat
Standard Product ISO standard product/JIS standard product
Helix Angle Standard
Point Angle (Degree) 118
Work Material Structural steel, carbon steel, alloy steel, dice steel, pre-hardened steel, stainless steel, cast iron, aluminum alloy, nonferrous metals
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5 Customer Reviews
The reviews are automatic translation.
For prototype mechanical parts, general purpose drilling
On 2018-11-01 16:07:50
Great failure, GSD drill below φ3 did not notice that it was a thinning conical drill. Naturally it can not be used because it is bad with this way. I will buy a new one because it will inevitably shift the center by hand sharpening.
When parts processing
On 2018-07-16 10:59:27
It is used for hole processing of SUS plate, but very sharpness is good.
It is also excellent in cost performance.
Drilling of iron plate
On 2018-03-15 15:51:40
I use only NACHI. The cheap goods sold at home centers etc. can not be cut off quickly but NACHI has sharpness and durability.
Assembling the control panel
On 2016-07-22 17:18:54
Because it is a maker item, it can be cut well
On 2014-12-24 13:44:45
It is natural but it can be used normally.
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