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		How to Make Tools (Peace Corps, 1977, 51 p.)
			(introduction...)
			Information
			A temporary hammer
			A chisel
			A drill
			Saw made with two pieces of wood
			Saw made with four straight pieces of wood and string
			Permanent hammer with bamboo handle
			Permanent hammer with wood handle
			Tin can drill
			Holding the wood with a bench hook
			Another wood holder
			Knife from metal packing strip
			Combination saw and knife
			A screwdriver
			Tongs
			Tweezers
			Tin cutting using the chisel or a tin cutter
			A heating stand made from a tin
			How to make a round hole in a tin
			Making an equal arm balance
			Detecting changes in temperature without a thermometer
			Making a set of weights
			Conversions between metric, British and American weights and measures

How to make a round hole in a tin

In cases where one wants to insert a tube into a tin tightly so that there is no leakage between the tube and the hole it fits into, it is necessary to make a round hole in the tin. If the hole is large enough to be able to fit the case of a Bic pen into (or a very small hollow bamboo branch) use the following method. First, make a tiny hole with a nail having a length of 5 centimeters. Then enlarge the hole with a 6/½ cm nail, followed by a 10 cm nail, and lastly by a 15 cm nail. It is important that these four nails be used in this way. If only the largest nail is used, it will make a square hole because the point of the nail has four sides.