uxcell Reduced Shank Twist Drill Bits 4.2mm High Speed Steel 4341 with 4.2mm Shank 10 Pcs

• Features: Cutting Edge Diameter : 4.2mm / 0.17"; Shank Diameter : 4.2mm / 0.17"; Cutting Edge Length: 43mm / 1.69"; Total Length : 75mm / 2.95"
• High Speed Steel Tool: High-speed steel straight shank tool is good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
• Reduced Shank: Reduced shank drill expands the size range capacity of a portable drill chuck. Common flute and overall length for minimal adjustment during tool changes
• Black & Gold Oxide Finish: Premium gold titanium and black nitride dual coating can apply lubricant better for smoother drilling and is more durable and corrosion resistant
• Versatile Uses: For use in a wide range of stainless steel, aluminum alloy, iron, copper, brass and metal materials

Specification:Cutting Edge Diameter : 4.2mm / 0.17"Shank Diameter : 4.2mm / 0.17"Cutting Edge Length: 43mm / 1.69"Shank Length : 30mm / 1.18"Total Length : 75mm / 2.95"Material: High Speed Steel 4341Finish: Black & Gold Oxide FinishShank Type: Round ShankType: Hot RollingPackage: 10 Pcs x Reduced Shank Twist Drill BitsDescription:1. High-speed steel straight shank drill bits are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance.2. Reduced shank drills expand the size range capacity of a portable drill chuck. Common flute and overall length for minimal adjustment during tool changes.3. Premium gold titanium and black nitride dual coating can apply lubricant better for smoother drilling and is more durable and corrosion resistant than the regular black surface.4. For use in a wide range of stainless steel, aluminum alloy, iron, copper, brass and metal materials. Perfect tool for maintenance departments, machine shops, and other industries.