uxcell Reduced Shank Twist Drill Bits 4_5mm High Speed Steel 4341 with 4_5mm Shank 5 Pcs

Specification: Cutting Edge Diameter : 4.5mm / 0.18" Shank Diameter : 4.5mm / 0.18" Effective Cutting Edge Length: 45mm / 1.77" Shank Length : 30mm / 1.18" Total Length : 80mm / 3.15" Material: High Speed Steel 4341 Finish: Black & Gold Oxide Finish Shank Type: Round Shank Type: Hot Rolling Package: 5 Pcs x Reduced Shank Twist Drill Bits Description: 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. Pemium 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 mainteance departments, machine shops, automotive shops, and other industries.