Cleveland Twist Drill Co
of Peterhead, Scotland
of 36-37 Upper Thames Street, London EC4.
1919 Advert for drills and reamers 
1956 Private company.
1961 Manufacturers of metal cutting tools, "Cle-force" twist drills and "Mo-Max" tool bits. 287 employees.
1976 Thorn Electrical Industries acquired Cleveland Twist Drill
Sources of Information
- Mechanical World Year Book 1919. Published by Emmott and Co of Manchester. Advert p121