Bone tool

experimental archaeologists, continue to use bone to make tools. The oldest excavated bone tools are from Africa, dated to about 1.5 million years ago.

digger-addition-adaptable-tools-at-make-excavating-easyDigger addition – adaptable Tools at Make excavating Easy
from billowywarehous60, ago in
These supplies are very small therefore , they have the ability to get inside of and around tight sp.

Invisible Excavations completes residential trenchless project in Sagamore …
WaterWorld, on Mon, 29 Feb 2016 09:48:45 -0800
The "no dig" process creates a new jointless, seamless, pipe-within-a-pipe and is highly effective at replacing old sewer lines. If the line doesn't allow CIPP, Invisible Excavations can use pipe bursting tools. The company pulls a burster head through

Official Gazette of the United States Patent Office
United States. Patent Office, published 1904, 0 pages