This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: Insets from 2 different photos combined to show chuck keys specifically. The scale was not matched scientifically, but was matched by eye to be realistic.. The original can be viewed here: ChuckDrillKeyedKeylessArbor.jpg: . Modifications made by Three-quarter-ten.
{{Information |Description={{en|Three Jaw, self centering chuck. One jaw has been removed and inverted to show the teeth that engage with the scroll plate and thereby allow movement. Underneath the image is the chuck key used to rotate the scroll and ther