ADETONA, Adebayo Abbass2025-04-30200830. Adetona A.A. and Rafiu A.A (2008) Analysis and Description of the Three Stage Heat Treatment Required in the Fabrication of an Adjustable Die (thread cutting tool) from a High Carbon Spring Steel: African Journal of Engineering Research and Development Vol 1 pp. 6 – 14http://repository.futminna.edu.ng:4000/handle/123456789/1422The work sample high grade carbon steel for annealing before machining it into a cutting tool the resultant tool was quenched in red oil from a temperature of 800 degrees centigrade to room temperature and was tested for work abilityenHEART TREATMENTDIEQUENCHINGHARDNING.ANALYSIS AND DESRIPTION OF THREESTAGES HEAR TREATMENT REQUIRED IN THE FIBRICATION OF ADJUSTABLE DIE(THREAD CUTTING TOOL)USING HIGH CARBON STEELArticle