Classic bit set
HERMAN QSB-17 | 90mm
4 bits in set

Easy manipulation by sliding the magnetizer onto the bit:
the strong magnetic field of the magnetizer holds the screw on the tip of the bit

Facilitates screwing in inaccessible places:
the screw does not need to be held with the other hand - it remains firmly on the magnetized tip

The possibility of adjusting the strength of the magnetic field:
by moving the distance from the tip, the size of the strength of the magnetic field changes

Flexible TorZon™ torsion zone on the extended shank:
the bit behaves like a strong spring when screwing, minimising the possibility of breakage when overloaded with high torque

Precision-machined bit tip:
fits snugly into the head of the screw, minimising the possibility of damage to the head during screwing

Hardened from tip to shank:
the same properties over the entire length of the bit

Heat treatment optimised for the intended use:
the bit is sufficiently hard and tough for use in standard industrial conditions

Primary material S2 (chromium-silicon-manganese-molybdenum-vanadium steel):
ideal for extremely durable, high-quality bits

With ¼" hexagonal shank (form E 6.3 according to DIN ISO 1173):
suitable for clamping in three-jaw chucks and for all 1/4" standard hexagonal bit holders (form D 6.3 according to DIN ISO 1173)

Surface finish / hardness:
grey phosphated /HRC 58~59

Warning:
the standard bit is not suitable for impact driving