YOUR HAMMER WEIGHT -- YOUR NATURAL SWING:

Testing has shown that lead shot is the best medium to transmit impact. We have supplied lead shot and “Corking” material to let you play and find YOUR natural hammer weight. We supply two corks and a maximum load of bird shot.

Another of the secrets to bumping keys is consistency. You want to apply a standard “THUMP” to the key that imparts the correct kinetic energy to raise all the pins – all at once. On some locks you strike it harder – sometimes softer, but your blows are centralized around some standard swing.

We made our hammers very slightly lighter than the other folks, (by adding two compartments in the hammer heads). These compartments allow you to precisely match your hammer weight with your natural swing.

It is pretty simple: Force = weight times velocity. So if your natural swing is rarely striking the bump key hard enough, what do you do? Add some weight and let the tool centralize at your “normal” striking speed. In that way you can go slightly greater or softer with your speed, but you start out closer to the normally required “bump”.

Testing has shown that lead shot is the best medium to transmit impact. We have supplied lead shot and “Corking” material to let you play and find YOUR natural hammer weight.

Experiment and add our lead shot to the hammer compartments to precisely match your hammer weight with your natural swing. When you are satisfied, glue the corks in permanently.

Do you need to strike the key more firmly or lightly at times as a normal approach to bumping? Of course! But the comfort of swinging slightly softer or harder than your natural swing can yield great results in bumping.