We find that Craft & Design pupils often have difficulty remembering the sequence of operations involved when making a simple screwdriver handle. These photographs depict this process. We begin with the preparation of the 25mm aluminium blank. After this the blank is held in the 3 jaw self centering chuck. A series of turning operations is then carried out. For the following we set a high spindle speed and used a slow feed speed for best results. Shown here we show facing off. Then turning down or parallel turning. Next taper turning. After that the Slocombe bit or centre bit is mounted in a Jacob's chuck and a pilot hole is drilled. A HSS twist drill or jobber bit is then mounted in the Jacob's chuck and a blind hole is drilled to a depth of 30mm. The depth gauge is used to judge this. Taps and dies are used to cut the internal thread on the screwdriver blade and the internal thread on the handle. Finally both components are assembled and the handle is knurled or given a textured grip pattern. This is done at a very low spindle speed and a slow automatic feed speed.

Tap wrench for holding smaller more delicate taps and/or other round or sqare objects.