This is a mallet.
It is from Grave 17 at Maidum. Egyptian stoneworkers (and woodworkers) used heavy wooden mallets with copper alloy chisels, to shape the stone they were working. This one has obviously seen a lot of hard work and was due for replacement. A stoneworker employed by the state would be supplied with tools from a central store, all carefully noted by scribes. Perhaps because it was so worn it was buried with a dead man: it was not wasting a good tool and it would become perfect in the Afterlife. This is a mallet. It is made from wood. It is between 4,620 and 4,700 years old, dating to the 3rd Dynasty (2686-2613 BCE) in the Old Kingdom.