Black and gold oxide finish. Body and clearance are gold surface treated for maximum lubricity
Self-centering split point provides excellent drilling accuracy and precision
Heat treated to 2185° F and then nitro carburized at 950° F to be measurably harder than high speed steel
USA Made
Precision ground point, flutes, body, clearance, and drill diameters for the best accuracy and performance
وصف
This 18 Piece Drill and Tap set saves time, money and effort! Time is money. By matching the tap with the appropriate drill bit, Norseman has cut out the guess work. Now you do not need a drill chart, and you won't need to worry if you have the right drill or tap on hand.