Page 943 - Wurth Total Catalogue

RING SPANNER WITH POWERDRIV ®

For sure grip and higher transmission of forces.

ZEBRA POWERDRIV®
Ring Spanner.
• Extremely tough, high quality, chrome vanadium steel.
• Withstands highest loads.
• Extremely long service life.
• Reaches highest torque values.
• Negligible deformation in case of extreme loads.

Perfect Workmanship.
• Nickel primer treatment achieves optimal chrome adhesion under heaviest loads.
• Round finish avoids sharp edges and corners.
• Matte chrome plating provides good grip, even with oily hands.
• Perfect fit due to high gloss polish.
• FEM calculation concentrates material where loads are created.

Without POWERDRIV® – line pressing With POWERDRIV® – surface pressing

The Principle: Far beyond DIN:
Test value DIN 899
The POWERDRIV® spanner doesn’t, as usual, Test value Würth Ring Wrench
grip screws by the corner, it rather grips them
by the flanks. Thus, the contact surfaces are
POWERDRIV®
increased, enabling a surer grip of the ring
The POWERDRIV®- system was developed for and a higher transmission of forces.
particularly high demands in aviation, in order to
enable highest accuracy of fit. It permits a higher The service life of the screws is increased,
transmission of forces in the ring and gentler because wear to the corners of the screws is
distribution of loads on the screws. avoided.

5 7 9 11 13 15 17 19 21 23 25 27 30 34
Even old and rusty screws can be loosened 4 6 8 10 12 14 16 18 20 22 24 26 28 32
without problem with the POWERDRIV®. A/F [mm]
AUS. pub. 09/17 © Far beyond DIN Requirements:

Highest overturning values for the most extreme
loads.

12 1001