: Many mass-produced items use these two drives for user-accessible parts, while reserving more complex drives like Torx or Hex for internal components to discourage unauthorized dismantling. Best Practices for the Task

Phillips and Pozidriv cross-head screws – explained in simple terms

: Distinguished by its "X" or plus-shaped tip, it is designed for Phillips screws. This design is self-centering, which prevents the driver from wobbling and reduces the risk of slipping sideways compared to slotted screws. Contextual Usage in Maintenance

In the world of mechanical assembly and maintenance, these two screwdriver types remain the most fundamental:

When a manual specifies using only these two tools, it typically implies a "tool-free" or "basic-tool" maintenance philosophy intended for the operator rather than a specialized technician. For example:

: On equipment like the 6800 Series Single Column Table Model, page or section 121 details testing limit stops, a task requiring minimal tools to ensure the crosshead moves safely.

: Often called a standard or flat-blade screwdriver, it features a single chisel-shaped tip designed to fit into a straight slot on a screw head. It is the oldest and simplest type of screw drive.