Item Description:Material: - Co (M35)Color: as shown in picFeatures:Made of cobalt material, rigid and durable.Triangle shank which is more solid and convenient.With a case, easy for storage and carrying.Great tools for drilling holeApplication: suitable for thin metal, aluminum, iron, angle steel, carbon steel, 304 stainless steel.Specifications:Type: M35 Twist DrillShank Diameter have 10 kinds of size u can choose:3mmQuantity:10 Pcs/SetDue to thebetweenmonitors, the picture may not reflect the actual color of the item. Thank youItem Specification:Use: Wood Drillingis_customized: YesType: Twist Drill BitDIY Supplies: Woodworkinglength: as descriptionMaterial: High Speed Steel