Screwdriver bit
Apex
Apex Tool Group SAS
Apex offers a choice of three heat treat hardness levels in many of our
screwdriver bits to match the application. These heat treats are specified by a letter suffix as follows:
X - Hardest heat treat in the industry
I - Intermediate hardness
R - Lowest hardness
screwdriver bits to match the application. These heat treats are specified by a letter suffix as follows:
X - Hardest heat treat in the industry
I - Intermediate hardness
R - Lowest hardness
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