Walter 350N131BP 31/64 Nitro Mechanics Drill - 350N - Blister Pack

This M-7N drill bit set is made of high speed steel. It is designed for use with stainless steel and cast iron. This 350N series drill bit set has a black and gold finish, and has fractional inch measurements. It has a 4⅞ inch length. Plus it has 3¼ inch flutes, straight shank with three flats, neutral cutting direction, and 135 Degrees split point.