Cordless Fastening Tools

In 2015, we launched the Hilti BX 3, the award-winning world’s first battery-powered direct fastening system which changed the game for fastening in concrete and steel. It’s a new dimension for installers of walls, ceilings and overhead services – bringing the only direct fastening tool that is combustion-free (no powder or gas!) and entirely powered by your existing 22V Lithium-Ion batteries. 

All the power you need, with none of the hassle of ordering, delivering and disposing of gas cans or cartridges onsite. Plus, low noise, low vibration, fewer nail jams and virtually no dust will help you be even more productive. And it’s smart! Do you need any more reasons to make the switch?

The geared spring concept breaks through technical barriers and lays the foundation for this innovative and highly ergonomic tool.

Nailing into hard base materials requires high penetration forces which may be generated by impact. In an ergonomic hand-held tool, a fast piston driven by expanding gas (combustion gas or compressed air) usually does this.

In a battery nailer, the energy needs to be transferred from the battery to the piston movement very rapidly. While for very small driving energies this can be done by electrical coils directly, it is necessary to buffer the energy before releasing to the piston for higher energies.

Hilti’s ‘geared spring technology’ breaks these barriers by using 4 key elements:

• Geared spring drive:         High efficiency in transforming slow spring movement to fast piston movement 
• Belt drive:                          Light weight transmission
• 2 counteracting springs:   Opposed movement of springs balanced for low recoil
• Linear alignment:              Minimal weight by aligning spring and loading mechanism along the force flow