What are needle and escapement files?

29th February 2020


	What are needle and escapement files?


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			Needle and escapement files tend to be shorter, thinner versions of the larger machinist’s files.

			They are used where a great degree of precision is necessary, particularly in fine metalworking trades such as locksmithing, jewellery making, watch making and electronics.

			They are perfectly suited to making decorative patterns on jewellery and the backs of knife blades and handles. For more information, see: How to create decorative patterns with files

			Needle files can also be used in modelling, to clean up small parts of plastic, resin or pewter models so that they will glue together more easily.

			Classification All needle and escapement files are classified in the same way as normal files, and their specific uses vary according to their cross section, as described in each file guide.

			What are the characteristics of needle and escapement files?
			Cross section, profile and cut Needle and escapement files are made with a variety of cross-sectional shapes, profiles and cuts. All of the Swiss pattern files listed in the guides are produced as needle and escapement files in addition to their regular sizes.

			Size Needle and escapement files tend to be between 100mm (4″) and 137mm (5¹/₂“) long, although they can be longer.

			Their defining feature is that they are thinner than standard machinist’s files, which means they can be relied on for more precise work.

			As they are thinner, they can be used in tighter spaces than normal files.

			Handle One of the features of needle files is their rounded handle, which is most often integrated with the blade.

			These handles are quite thin, however, and can make your hand ache if used for a long period of time.

			To combat this, needle file holders have been developed to hold the file securely and give the DIYer a more comfortable grip. They are adjustable, which allows them to attach to any size of needle or escapement file handle.

			Needle files with long, thin, square handles are referred to as escapement files. They were designed to allow precision filing in hard-to-reach areas

			They were originally developed to file inside clock mechanisms.

			They take their name from the part of a clock that transfers energy from the pendulum to the time-keeping mechanism, which is known as the escapement.

			Swiss or American? All needle and escapement files are Swiss pattern files.