[gchpaco]

Bit braces (the C shaped tools) are also the finest Phillips screwdrivers available, I've found. The design makes it easy to exert a lot of force to prevent the bit from camming out, and the amount of torque one can generate is astounding. Braces are measured by the diameter of the rotation; most good ones are in the 8"-10" range, which is probably more appropriate for casual use. 14" and up were generally for driving big augers, and you need every bit of that torque. I have a 6" one that is cute and small but not actually all that useful due to jaw issues.