Hollow punches are used to perforate parts made of metal, rubber, faux leather and other materials. Edges of the holes created with the help of these tools are neat and do not require any further processing.
Hollow punches: 7 important facts
- Most of the devices are made as rods produced of hardened metal. One end of the tool is sharpened and is used for cutting, and the other one is thick: it is intended for being hit with a hammer. These tools are suitable for working even with highly durable elements.
- Some models offered in the catalogues can be simply pressed on. They are fitted with a T-shaped handle made with the use of rubber or plastics. As a rule, these devices are used for operations with car interior parts made of soft materials.
- If necessary, you can buy hollow punches with a countersink function. They have a conical shape and allow not only to create a hole but also to ream it.
- There are devices made as pliers with a leverage mechanism. A workpiece is placed between the working plates. Their sharp parts punch the part when the handles are squeezed. You should do this gently, without jerky movements. As a rule, tools of this type are fitted with interchangeable blades of different size and can be used when working with thin car parts.
- There are tools made of chrome-vanadium steel and intended for working with metal parts, and there are also models made of tool steel – they can be used for leather and rubber.
- The tools have to be regularly sharpened. The articulated joints of punch pliers need occasional lubricating.
- To make the edges of the hole as neat as possible, you should put a smooth object, for example, a wooden board under the processed element. When working for a long time, it is desirable to cool down the functional part of the device. Ordinary water suits the task well.
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