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The series number is the opening diameter of the tapered receptacle, in millimetres. ER collets collapse to hold parts up to 1 mm smaller than the nominal collet internal size in most of the series (up to 2 mm smaller in ER-50, and 0.5 mm in smaller sizes) and are available in 1 mm or 0.5 mm steps.
Bulldog clips can be used in many domestic, industrial, and arts and crafts applications, including: The binding of a flip book allowing sheets to be added, removed or replaced. [1] A cable tidy at a computer station. The clip can be clamped onto the edge of a desk and computer cables can be threaded through the holes on the end of the tip ...
The paper computer's method of operation is nominally based on a register machine by Elmar Cohors-Fresenborg, [2] [7] but follows more the approach of John Cedric Shepherdson and Howard E. Sturgis in their Shepherdson–Sturgis register machine model. [8] A derived version of the paper computer is used as a "Know-How Computer" in Namibian ...
Unlike hand tools, a tool in numerically (digitally) controlled machines is composed of several parts, such as the cutting tool (which may be one piece or comprise a body plus indexable inserts), a collet, and a toolholder with a machine taper. Putting the parts together accurately into an assembly is required to achieve error-free production.
Perhaps the former statement should be rewritten as "Thus a given collet holds any diameter ranging from its nominal size to its 0.5 to 2mm smaller collapsed size, and a full set of ER collets in nominal 1mm steps (or 0.5mm steps for smaller size ER collets) fits any possible cylindrical diameter within the capacity of the series."--
Regarding the image showing the paper clip next to a tape rule: the units of the rule should be indicated. It's blatantly centimetres (based on the usual size of paperclips, the usual size of the metal end to the tape measure, and the division into 10 - inches are commonly divided into other numbers). So changed description.
It consists of a length of tube of around 4 mm to 6 mm in diameter, often made of coiled steel springs, with a push-button on one end.Three metal wires protrude from the other end, each sprung to bend outwards, away from the tube's axis, but with their tips bent inwards to form teeth.
A clipboard is a thin, rigid board with a clip at the top for holding paper in place. A clipboard is typically used to support paper with one hand while writing on it with the other, especially when other writing surfaces are not available. The earliest forms were patented in 1870–1871 and referred to as board clips. [1]