HSS Twist Drill Bit Set Metric 25pcs set (1.0 - 13.0mm) and improved abrasive life

and improved abrasive life

Efficient Swarf Clearance for a smooth chip removal to reduce clogging and improve drilling speed

and die grinders

they will significantly outlast brown aluminium oxide discs

these commercial-grade cutting wheels deliver clean

HSS Twist Drill Bit Set Metric 25pcs set (1.0 - 13.0mm) and improved abrasive lifeCobalt increases the strength of the steel and makes it more heat resistant; this is an important factor in drilling hard materials because the friction of metal against metal can produce high temperatures that damage the material or the drill bit. Will perform and outlast normal HSS bits particularly if drilling tough metals Fully ground M35 HSS material increases drill life 135 Split point cuts faster and reduces wandering Precision engineered shank