Thompson- 1/8 inch thick Parrting Tool/1/2 inch shaft
These tools are made from the best steel on the market, CPM 10V® (A-11) a powder metal manufactured by Crucible Materials Corporation with a 9.75% vanadium content to hold the edge longer which has a proven history in woodturning. Then is hardened to 60-62 Rockwell, triple cryogenic tempered reatment between the first and second temper. The cryogenic treatment at this stage transforms the bulk of the retained austinite to martensite and form very fine "eta" carbides much finer than tempering alone, this increases the durability and toughness of the steel. Nothing else can be done to this steel!