- Made of HSS material with good milling, ensure high work efficiency. - High hardness, high wear resistance and high toughness. - The drill bits in different sizes to meet varied needs.- Can be used radial drill, bench drill or hand drill chuck for drilling operations. - Suitable for aluminum, iron and plastic. Specifications: Material: HSS(High speed steel) -4241

Brand	Xinfa	Coating	Titanium
Product Name	Twist Drill Set	Quantity in a set	99 pcs
Material	HSS 4241	Use	Hand Drill/Bench Drill