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  • 12.7sq socket (12 angles) (millimeter)
  • 12.7sq socket (12 angles) (millimeter)
  • 12.7sq socket (12 angles) (millimeter)

12.7sq socket (12 angles) (millimeter) B4-28W

4.25 (8)
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Item Feature
Outlet Corner (sq.)
12.7, 12.7
21st century version tool power fit
Dimension l (mm)
24, 24
Dimention D1 (phimm)
38, 38
Dimension H (mm)
16, 16
Weight (g)
190, 190
Hole corner
Twelve square, 12 angle
2015 Trusco Published Pages
2 0090
2014 TRUSCO Published Page
Dimention D2 (phi mm)
34.5, 34.5
Dimension S (mm)
28, 28
Dimensions L (mm)
40, 40
TRUSCO Part Number
307-4838, 307-4838
Customer Reviews
5 star 5
4 star 1
3 star 1
2 star 1
1 star 0
Review Rating: 4.25
8 Customer Reviews
The reviews are automatic translation.
Tightening head bolts of bike.
From Japan
On 2016-11-16 19:51:26
Accuracy is also certainly, trust definitive also in the management of a torque wrench.
This review is about item#7111894.
To screw desorption
From Japan
On 2016-10-31 20:41:18
You give up When the screw mountain collapsed in KTC. Trust of manufacturers.
This review is about item#7111903.
Vehicle maintenance
From Japan
On 2016-09-30 23:19:44
It was trouble in the hexagon and 12 corners, but chose the 12 corners in the ease-of-use
This review is about item#7111946.
Mechanical repair
From Japan
On 2016-04-02 11:32:03
Long it can be used in the products of KTC. I am glad if cheaper even a little because it was price that does not change the hardware store.
This review is about item#07111587.
Maintenance work
From Japan
On 2015-11-05 20:26:14
A little more, I think that if you're accurate.
This review is about item#07111693.
Used for cars, bicycle maintenance
From Japan
On 2015-02-04 22:04:33
Quality, comfortable feeling has also been improved certainly compared to what has been done. Work can now be done reliably.
This review is about item#07111754.
Maintenance of industrial engine
From Japan
On 2015-01-15 13:46:28
It is used for maintenance of industrial engine. In the engine of the car manufacturer, there are places where 12 - 17 mm and 12 - angle bolts are used. I will use it at that time. Since the 12 corner of the maker item is not placed in the home center etc., I used the 12-sided socket of the inexpensive box wrench set by us. This time, Monotaro says that there are 12 Kaku made by KTC and have purchased it. Since it is 12.7, it can be used for a torque wrench of 1800 N · m.
This review is about item#07111641.
Removing the hub nut of the rear wheel of the domestic bicycle
From Japan
On 2013-07-05 19:51:00
The rear wheel of the domestic bicycle can not come off unless it is 15 mm. I bought it although it is not usually used. It can be used normally.
This review is about item#07111727.