Description:Features: Cutting Edge Diameter : 14.5mm / 0.57"; Shank Diameter : 10mm / 3/8"; Cutting Edge Length: 52mm / 2.05"; Total Length : 150mm / 6.0"; Cutting Direction: Right HandHigh Speed Steel Tool: The twist drill bits are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance. High cutting edge strength, fast cutting speed.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. Sharp and spiral cutting edge provides neat and smooth cuts.Black & Gold Finish: Premium gold titanium and black nitride dual coating can apply lubricant better for smoother drilling and is more durable and corrosion resistant.