At the construction site, every bit of help is welcome, and work is much easier when you have a free hand. So having magnetic bits that hold the screw on the tool are a huge help. And whats even better; this is now possible with stainless steel screws too. Thanks to the HECO-Drive with GripFit effect. The perfectly coordinated system works mechanically, not magnetically: The bit has a slightly conical shape, which means that the screw is held onto the bit through friction permitting you to carry out your work easily with one hand. With HECO-ClicFix, the bit is held securely in the machine and can be quickly replaced. HD bits and T-Drive bits are both compatible with HD screws and T-Drive screws.