Bosch GSR18V-400B12 Drill/Driver Kit vs Bosch GSR18V-755CB25 Drill/Driver Kit

The GSR18V-755CB25 is the stronger drill: 755 in-lb of torque against 400, two 4.0 Ah CORE18V batteries instead of one 2.0 Ah, and KickBack Control for bind-ups. The GSR18V-400B12 is the lighter, shorter tool at about 1.95 lb and 6.3 in, which matters for overhead and cabinet work. Owners of both describe solid Bosch build and reliable batteries; the 755 draws a warning that near-identical Bosch models are easy to mix up, so check the model number on the box.

• Choose the GSR18V-400B12 if you want a light, compact 18V drill for home repairs, assembly and light drilling where weight and reach matter more than raw power.
• Choose the GSR18V-755CB25 if you drive large screws, bore holes or work in materials that can bind, and want two batteries and kickback protection.