Description High Speed Steel Black Oxide Reduced Shank Drill Bit with 1 2 inch Shank Twist Drill BitDrills are precision ground to maintain a high degree of concentricity between shank and body diameterThese bits are ideal for drilling in low and medium tensile strength materials76mm flute length and 152mm overall lengthBlack oxide treatment adds lubricity and creates small pockets on the surface of the tool that act to hold coolant near the cutting edgeThese drills expand the size range capacity of a portable drill chuck common flute and overall length for minimal adjustment during tool changesProcessed iron steel plastic wood copper aluminum and other metal materialsDurable mainly used for bore machiningSpecification Material High speed steelFinish Black oxide finishConventional point 118 conventional pointDiameter 13 0 40 0mmShank 1 2 inch shankPackage Included 1 x 1 2 inch shank drill bitMore Details