You´ve certainly already got in touch with screws whose head enables to use slotted and also Phillips cross type screwdriver. It´s quite handy as you´ll probably never be in a situation when you won´t have a usable screwdriver for a given screw by your hands.
But do you know that there is a special and the most suitable screwdriver for such screws, so called. SL/PZ (or SL/PH) , also called as „PlusMinus“? It is a screwdriver with this type of blade:

The praxis proves that such „hybrid“ screwdriver has the highest resistance against slip off, already at a minimal pressure on a screw. That´s especially beneficial for work on devices on DIN rail, as we don´t have to push on the screw (and thus a DIN rail, plastic older or a plastic enclosure) using uselessly excessive force.
Directly in our offer, you can find 6 types of screwdrivers with the „PlusMinus“ blade from Wiha:
- SoftFinish electric SlimFix SL/PZ1 – insulated screwdriver, VDE 1000V
- SoftFinish electric SlimFix SL/PZ2 – insulated screwdriver, VDE 1000V
- Bit Stubby 41230 – extra short hand for a system of interchangeable Wiha SlimFix electric bits series, in a set with three bits - SL3.5, PH2, and SL/PZ2. An ideal helper even for very tiny places, VDE 1000V
- 3 versions of Wiha SpeedE – all three available sets also contain SL/PZ1 and SL/PZ2 bits
Wiha also offers other versions of SL/PZ and SL/PH screwdrivers, standalone but also in a form of exchangeable bits. In case of interest, we can supply you any product from Wiha in a short leadtime and at favourable conditions.
If you are interested in other WIHA products or you need more information, we would be happy to advise you at sales@soselectronic.com
Advantages of “PlusMinus” screwdrivers:
- the best possible torque with the least perpendicular force
- eliminated risk of slip-off from the slot
- protection of screw heads
- pleasant work, professional solution
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