The description of the 800/4 Z-family from the manufacturer states that these Z-bits are tough for hard materials

according to the manufacturer's product text

hvor man ofte af- og tilkobler udstyr

Mulighed for ground connection

Further technical data and measurements can be found in the manufacturer's datasheet: See datasheet from the manufacturer

Skruetrækker TX25 m/kuglehoved 100mm klinge SoftFinish håndta Unit(s):Pcs The description of the 800/4. Makes work easier : The ball head facilitates access to the screws and thus simplifies work at angles of up to 25. Increases efficiency : Unique Wiha grip size concept with optimal balance between power and control. Your health is protected : With the patented SoftFinish grip design for gentle work on hand and muscles. Recommended by doctors and therapists from AGR! Application : For all TORX screws that are only difficult to access. Extra : The