5 ESSENTIAL ELEMENTS FOR DIFFERENT TYPES OF SCREW HEADS

Almost certainly the most common are Nos. one and a couple of, although No. 0 is going to be desired for many really modest screws and 3 and four for giant screws. (See the Point / Bit Size Tutorial for details about Phillips, sq. and Torx® travel sizes, and also the Socket Screw Merchandise chart for specifics of hex key sizes.) Slotted and Phill