19pcs Lot 1-10mm HSS Twist Drill Bit Tool SetNetmore TechnicalMarch 5, 2021March 5, 2021

19pcs Lot 1-10mm HSS Twist Drill Bit Tool Set

High Speed steel with high quality.
120 Degree tip angle for self centering and good precision
Suitable for drilling various metals and wood
HSS being a hard material this makes the tool brittle, this is the case with all drill bits on the market. So, to get the best usage out of your drill bits it’s best to use cutting fluid/oil which will reduce heat buildup on the tip of the drill and prevent it from losing its hardness.
HSS drill bits are harder than normal steel thus able to drill through materials that are softer than HSS; Steel, various metals, wood etc