Shapes of driving features and assigned tool sizes
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Hexagon and hexalobular socket keys


Screwdriver bits / hexalobular socket keys1)
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Type of hexalobular socket key:
- T = Torx®
- X = hexalobular socket according to ISO 10664
1) Reference values basing on product standards. Special requirements or brand products can technical differ from it.
Wrench size of hexagon head screws / nuts


1) for wood screws