Viegas & Benton, 2014: A CONSERVATION AND PREPARATION OVERVIEW
a
b
c
d
e
Figure 12: A selection of different tools used for mechanical preparation. a) Some of the airscribes used, secured on their
holders inside the prep cabinets; b) power drills with tri-fluted carbide tipped drill bits; c) 300mm angle grinder with segmented
diamond disk and sledge hammer for plug & feathers finish; d) large rock saw for reducing larger boulders; e) trimming excess
matrix from exposed bones, al owing to leave a certain amount of neatly cut rock surrounding the bone "natural padding".
Figure 13: Students working in closed and open prep cabinets.
60 Journal of Paleontological Techniques