The Heller HSS-G high speed steel drill bit, is perfect for drilling alloyed and unalloyed steels. It works very precisely and is durable. Can also be used for drilling plastic, wood and similar materials.
Dimensional accuracy is guaranteed by the precision ground tip according to DIN 338 RN. With it's split point and 135° angle enable optimal centring when positioning the drill bit. A high concentricity according to DIN 1414 characterizes this drill bit.

Highly-precise and durable with best finish in metal
Precision ground as per DIN 338 RN for outstanding dimensional accuracy of the drilled hole
Split point grinding and 135° point angle for optimum centring during spot drilling
Excellent concentricity as per DIN 1414


Drill Bit Size - 4.1mm