
1) Cutting tool 2) Metalworking cutting tool
Found on
https://www.crosswordclues.com/clue/tool-bit

A tool bit is a non-rotary cutting tool used in metal lathes, shapers, and planers. Such cutters are also often referred to by the set-phrase name of single-point cutting tool, as distinguished from other cutting tools such as a saw or water jet cutter. The cutting edge is ground to suit a particular machining operation and may be resharpened or r...
Found on
http://en.wikipedia.org/wiki/Tool_bit
No exact match found.