HSS stands for High Speed Steel. HSS drill bits are also commonly called twist drills or jobber drill bits.
Our range of drill sets feature a variety of options including a 19 piece as well as a 25 piece set, supplied in metal boxes. Our 19 piece option consists of bits ranging from 1mm to 10mm in size, with options in increments of 0.5mm. The 25 piece set features 25 individual bits ranging from 1mm to 13mm in size with options available in increments of 0.5mm along this spectrum.
These sets are manufactured by ADDAX and are made of either high grade M2 alloyed stainless steel or the economical roll forged jobber type. These bits also feature a 135 degree split point in order to prevent the drill from drifting when the bit is being used in a drill.