The A19131M drill set is in a cleverly designed dispenser with a rotating top, makes selecting the required drill size very simple. Just turn the clear plastic top and line up the size you require with the hole in the case, turn the set upside down ? and out pops your drill ? and only that drill. When you?ve finished just put it back into the container through the hole and turn it to the next one you need, or to the blank plate ? making sure no drills can fall out in transit. No need to sort through sizes or try to put everything back in the right place. Contained in the A19131M are a selection of 20 of Dormer?s A100 smaller diameter metric jobber drills which are suitable for both hand held and machine drilling in a number of applications. With a steam oxide finish, which helps stop work piece material from sticking to the cutting edge of the drill, the A100 comes with a conventional 118 degree point to provide strength and makes regrinding the point much easier and so cost-effective. The A100 is suitable for drilling many materials including steels, aluminium and stainless steels, with confidence of a good result every time. The A19131M set of small metric diameter, A100 drills will cover your drilling needs for smaller diameters. *Note: all drills below 1mm are bright.