Making a round or square hole in sheet metal should be a straightforward process with the correct tool. However, most tradesmen know that to consider the complete cost of making a hole you need to take into account both the material cost (tools and consumables) and the labour cost (time needed to make the hole, clean up and make good any damage). The labour element makes up the highest cost in making a hole but is often forgotten when buying a new tool. When making a square hole, the labour element is compounded further.Hydraulic hole punches are not a new invention and are in use daily by control panel builders and electrical contractors, making accurate holes in enclosures, gland plates and control consoles. They are ideal for any company working in a restricted space or if an effortless hole needs to be made with minimal fuss. Any company making holes in sheet steel on a regular basis will find that a battery hydraulic punch driver will pay for itself very quickly when compared to hole saws.
Read the full article in the July issue of PBSI
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