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  • Super hard hole saw 278
  • Super hard hole saw 278
  • Super hard hole saw 278
  • Super hard hole saw 278

Super hard hole saw 278 278040

3.92 (12)
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Item Feature
Effective Length (mm)
Blade Diameter D (phi mm)
Number of Blades
(Center drill) Cobalt high-speed steel and Drill with carbide tip : C-6 [278CDC6] or T-6 [278CDT6] (phi5.9x48L)
Compatible Motor
Electric drill (please use only for rotation)
Center drill: C-6 [278CDC6]
Chuck Dimensions (mm)
TRUSCO Part Number
Thickness to 4 mm of steel plate, stainless plate, copper plate, aluminum plate, hole drilling work.(Use C-shaped Center drills (cobalt HSS)) up to 4 mm thick FRP, hole drilling work in composite resin plate, etc.(CENTER DRILL T-shaped (CARBIDE TIP DRILL) USE)
Customer Reviews
5 star 7
4 star 1
3 star 2
2 star 0
1 star 2
Review Rating: 3.92
12 Customer Reviews
The reviews are automatic translation.
Make a hole on the corner pipe of 2.3t.
From Japan
On 2017-03-04 10:53:18
I purchased for 48 holes in mild steel 2.3t material, the temperature had dipped the oil so that it does not rise, where the 30 drilled, super steel is no longer possible drilling off. I think that life is too short. It does not break even in about opened dozens hole made in China.
This review is about item#8733277.
Stainless steel 6 places processing
From Japan
On 2016-08-10 20:25:17
It could easily processed in charge of 10.8
This review is about item#8733645.
Drilled holes in the stainless steel plate
From Japan
On 2016-01-28 17:39:38
The price has purchased I think that long-lasting because it is enhanced, a stainless steel plate (3mm thick) Four open When the tooth to have flew. Although you might arm is wrong! Although we continued to work to buy other manufacturers goods immediately, there was opened eight, but it was okay.
This review is about item#08733277.
Drilling of the aluminum panel
From Japan
On 2015-11-27 17:01:22
But is not yet using it, we use a similar size. There is no particular trouble, but it is a price is high for the problem. At first we used the punch press, but I have bent aluminum panel past the end. Again, Holsoe was re-recognized as a thing necessary.
This review is about item#08733471.
Metal used to make a hole under the tap to the (aluminum plate)
From Japan
On 2015-03-23 22:06:16
Electric drill driver with an aluminum plate has a repeat drilling in (3mm thick), but smoothly, I am satisfied me clean open. I think that it is reasonably durability because it does not have happened, such as the moment blade missing.
This review is about item#08733286.
Drilling of the mirror
From Japan
On 2014-12-17 17:08:34
I bought without problems also this time because it was using previously.
This review is about item#08733313.
Switchboard of drilling
From Japan
On 2014-01-28 23:37:49
Is less expensive the same as the home improvement
This review is about item#08733331.
Drilling of the resin product
From Japan
On 2013-04-09 14:52:00
Blade of the cutter has firmly, very appearance is good after processing. Because there is a lot of size in the future, you use.
This review is about item#08733767.
Ss Steel drilling
From Japan
On 2013-02-04 15:49:14
Because it processed with the keyless chuck, the load was applied and the chuck became useless.
This review is about item#08733742.
Drilling work of steel sheet
From Japan
On 2012-10-04 17:31:44
Due to the large hole diameter, there is some shake, but it is cut. I also want to check how much use frequency can be kept.
This review is about item#08733891.