I am not sure what they called such a wooden mallet on a Bofors list of equipment, but in the Marine Corps such a tool was:
Tool-Universal M1A1
"This tool is issued for the purpose of making temporary repairs where standard issue tools fail to accomplish the task or where there is no standard issue tool for the particular failure. Generally a smart bash on the offending part/parts will get the broken part/parts functioning again.
In cases of extreme emergency, Tool-Universal M1A1 may also be used as a substitute Personal Small Arm. Experience has shown it is best used by first swinging the tool in an arc at the offending enemy and then smartly using a sharp downward stroke once the enemy is down.
Due to the extreme simplicity of Tool-Universal M1A1 there are no standard maintenance procedures however field reports indicate Duct Tape is an effective repair medium for minor damages"
Cheers
Bill