With this indestructible plastic block you can prevent any damage to the window frame and injuries to your hand when using the window bump technique, as very strong blows are necessary.

We also offer the articles described above as a set.
 

Ideal pretensioning device when using electric picks. The cylinder core tensioner requires hardly any space in the cylinder core.

Ideal pretensioning device when using electric picks. The cylinder core tensioner requires hardly any space in the cylinder core.

Experienced users of the bump and rapping techniques report that one's success depends on many factors: The age of a cylinder (and thus the clamping force of the pin springs), the maximum length and differences in the length of the core pins, the type of key profile, differences in the designs of different manufacturers, etc.
It is therefore necessary to control the type of stroke very carefully - short, dry strokes, but also light, springy variations are necessary in order to achieve the right percussion effect with the bump key technique and so be successful.
That is why we have developed a tool that, due to its nature, allows all bump variations. Powerful, light, dry, springy blows of varying intensity can be produced effortlessly

The knives are inserted in the gap under the lifted plate and used to open the door by rotating the spindle. The rounded edges prevent the steel from tearing out; the blades are thinner on the surface in order to achieve highest possible elasticity.
8mm for 72mm latch distance (room doors);

The knives are inserted in the gap under the lifted plate and used to open the door by rotating the spindle. The rounded edges prevent the steel from tearing out; the blades are thinner on the surface in order to achieve highest possible elasticity.
9mm for panic locks and fire doors;