5pcs Drill Bit High speed steel Extra Long Straight Shank Wood High hardness
And, high hardness, good toughness. 5pcs Drill Bits( Including 1pc 2mm, 1pc 3mm, 1pc 3.5mm, 1pc 4mm, 1pc 5mm ). for drilling most materials including wood, plastic aluminum, alloy m aterial. Material: High speed steel.