uxcell Reduced Shank Twist Drill Bits - High Speed Steel 17.5mm

Features: Cutting Edge Diameter : 17.5mm / 0.69"; Shank Diameter : 10mm / 0.39"; Cutting Edge Length: 55mm / 2.17"; Total Length : 150mm / 6.0"; Cutting Direction: Right Hand High 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. Spiral groove facilitates the export of metal chip, saving time and effort in operation. Versatile Uses: For use in a wide range of stainless steel, aluminum alloy, iron, copper, brass, wood, plastic, and other metal materials. Suitable for hand drills, bench drills, etc. Tri-flat on the shank of drills are constructed for a tighter clamp, maximizing security for precise holes.