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The countersink is a kind of conical hole which drilled by special drill bits, it allows the tapered head of a screw to be inserted and screwed down in the hole to sit flush with the surface of the circuit board.

In order to ensure correct manufacturing for countersink design, PCB manufacturers require the details of the hole diameter or other specifications, the detailed information as below is needed:

● Countersink is drilled on top or bottom side?
● Countersink is copper plated or non-plated?
● The angle of countersink
● The finished diameter of countersink at the surface
● The depth of countersink
● The finished diameter of the shaft of the countersink

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Drill bit with different angles are the key tools to make countersink, the angles with 82 degree and 90 degree are usually used in many kinds of design, but other angles like 60 degree, 100 degree, 110 degree, 120 degree and so on are also possible based on demands.

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A-TECH is capable of building different types of countersink with different diameters and angles, and no matter copper plated or non-plated, welcome to send inquiry if you have related demands.

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In the manufacture of A-TECH press fit pins pcb, a range of techniques have been used, from CAD design, 3D imaging, panel&track manufacturing, to final assembly. It can be used on nearly all kinds of surface areas such as canvas, paper, and wood

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A-TECH via in pad cost is of scientific design. Its design can be defined as an arrangement of lines, shape, colors, and texture that create a visual image. The principles of design are the rates that govern how elements are combined. It would be one of the most popular choices among gift shops and bookstores

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[17] has good quality. It is guaranteed by examining the plastics and additives, glass, coating and frame material inspection procedures. It would be one of the most popular choices among gift shops and bookstores

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The metal ingredients of A-TECH press fit pins pcb are under strict control. Lead, mercury, and cadmium in the battery cells are tested to rigorously to meet the mandatory standards put forward by the State Environmental Protection Administration. The quality formula makes sure its color will be bright and bold

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A-TECH press fit pins pcb is of flexible design. It is created by our designers who understand elements of design and use them in different ways to produce different kinds of art/objects and visual effects.

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via in pad cost Reasonable design, simple structure, easy to use, high resolution, high sensitivity, smooth writing, etc., sold well in domestic and foreign markets, and won unanimous praise from customers.

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