Reduced Shank Twist Drill Bits 25mm High Speed Steel 4341 with 12.7mm (1/2 ) Shank for Stainless Steel Alloy Metal Plastic Wood-25mm x 12.7mm

Reduced shank drills expand the size range capacity of a portable drill chuck. Common flute and overall length for minimal adjustment during tool changes. Premium gold titanium and black nitride dual coatings can apply lubricant better for smoother drilling and is more durable and corrosion resistant than the regular black surface. Sharp Spiral flutes provide neat and smooth cuts. High cutting edge strength fast cutting speed. Spiral groove facilitates the export of metal chip saving time and effort in operation. High wear resistance High heat resistance High toughness Hardened up to 63-65HRC Suitable for most general purpose applications. Can be used for drilling stainless steel aluminum alloy iron copper brass metal wood and plastic materials. Perfect tool for maintenance departments machine shops and other industries. Suitable for hand drill table drill processing equipment etc.. Suitable Lubricant is conducive to cutting or cooling making cutting easier improving smoothness and dimensional accuracy. It can help to extend the service life of tools in tapping operations. Features Wide Applications