Feature:1. Suitable for processing equipment such as electric drills and bench drills, used for drilling stainless steel, copper plates, iron plates, aluminum alloys and other steel materials2. The drill bit is accurately made of Tiplated highspeed steel, come with high hardness and good heat resistance3. Possess high cutting edge strength and fast gouge speed, which will effectively improving work efficiency4. The Sshaped spiral groove of the drill bit is beneficial to lead out the shavings and save time and effort, improving efficiency5. Adopt a powerful grinding wheel to make the blade groove sharper and smoother, making the drill more robust and durableSpecification:Item Type: Twist Drill BitMaterial: High speed steelApplication: Hand drill, bench drill processing equipment, etc.Uses: Drilling stainless steel, copper plate, iron plate, aluminum alloy and other steel materials.Drill bit sizeapprox.Total lengthapprox.Working lengthapprox.6.0mm / 0.24in99mm / 3.9in63mm / 2.5in6.2mm / 0.24in99mm / 3.9in63mm / 2.5in6.5mm / 0.26in105mm / 4.1in67mm / 2.6inPackage List:10 x Twist Drill Bit