13-Piece Blitz Extra Heavy Duty Jobber Drill Bit Set, 1/16″–1/4″ by 64ths

13-piece jobber drill bit set ranging from 1/16″ to 1/4″ in 1/64″ increments. Constructed from premium high-speed steel (HSS) and treated with a nitride coating for enhanced surface hardness and extended tool life. Bits feature 135° split points for quick penetration and reduced walking, and a black oxide and silver surface finish for corrosion resistance and smooth chip evacuation. Designed for extra heavy-duty applications requiring maximum durability and cutting efficiency.