Internal hexagon bits

Hex bits, also known as Allen bits, are used for screws and bolts with an internal hex. The range in this category runs from 1.5 to 8 mm, each with a length of 25 mm.

Individual bits are handy for topping up a bit set or replacing a worn bit. You fit them in a bit holder or in a screwdriver or drill driver that takes bits.

All items in this category are made by Seneca. Alongside hex bits, the individual bits range also includes Phillips bits, double-ended Phillips bits, Pozidriv bits, square bits, slotted bits, Torx bits and bit holders, so you have the right bit for every screw profile.