What is a chase wedge made from?

28th February 2020


	What is a chase wedge made from?


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			Using the optimum material to make a tool for the working (shaping) of sheet metal such as lead is essential. Lead is one of the softest metals and does not harden or become brittle when it is worked at normal air temperatures.

			A chase wedge, therefore, needs to be strong enough to mould lead into shape, but soft enough to avoid bruising or damaging its surface.

			Lead working tools such as a chase wedge are made from either wood or plastic. Both materials offer strength and durability while being able to shape soft metals without leaving marks.

			When making your choice, it is not a matter of which material is right and which is wrong but which meets your personal taste. If it is possible, hold one of each in your hand and decide.



			Wood
			Many types of hardwood can be used for lead working tools, but the most common is beech. Advantages Highly resistant to shock, vibration and abrasion, beech has been cited by craftsmen as light to use and resistant to splitting. Wood can also be repaired if the damage is simple wear and tear on the surface.

			Disadvantages Although wood is strong and supple, it requires regular maintenance to keep it long-lasting. It has a tendency to swell and warp with the weather, and is susceptible to the drying effects of humidity. See our tips on treating your wooden tools in the section: {{widget type=”cms/widget_page_link” title=”Care and maintenance of a chase wedge” template=”cms/widget/link/link_inline.phtml” page_id=”2911″}}

			High density plastic (or high density polythene – HDPE)
			Plastic has been gaining increasing use as a material for tools, particularly for the working of sheet metal. High density polythene (HDPE) granules – produced from petroleum – are manufactured and moulded into objects such as bottles, toys, pipes and tools.

			Advantages The molecular structure of HDPE is much more compact than other forms of plastic. This gives it excellent strength and high impact resistant properties.

			Unlike wood, plastic is not affected by the weather, requires little or no maintenance and is less easily damaged. Disadvantages Wood, however, has a tactile quality to it, feeling more natural to hold compared to the synthetic, cold touch of plastic.