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The difference between an inch hex wrench and a metric hex wrench
source:Industry News release time:2021-04-14 Article author:Rosit Popular:Air band saw
According to the regulations of GB/T5356-1998, a set of 8 common domestic hexagonal wrenches is the opposite side size:
2.5; 3; 4; 5; 6; 8; 10; 12 The unit is millimeters.
A set of commonly used inch hexagonal wrenches is 11 pieces, which are the opposite side sizes.
1/16"; 5/64"; 3/32"; 7/64"; 1/8"; 9/64"; 5/32"; 3/16"; 7/32"; 1/4"; 5/16"
The unit is inches.
The two types of hexagonal wrenches differ in size except for the opposite side and length system, and there is no difference in shape.
As soon as the hexagon socket screw appears, it needs a matching wrench. In those years when "Unbrako" hexagon socket screws were popular in the United States, various wrenches were manufactured, but they did not have a unified name.
Advantages of Allen Wrench:
1. Simple and lightweight. The size is moderate.
2. There are six contact surfaces between the hexagon socket screw and the wrench, which are fully stressed and not easy to damage.
3. It can be used to screw the screws in deep holes.
4. The diameter and length of the wrench determine its torsion force.
5. It can be used to screw very small screws.
6. Easy to manufacture and low cost.
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