Irwin Unibit HSS Fractional Step Drill Bit Size:1/4" - 1-3/8" clean and durable mounting indoors

clean and durable mounting indoors and outdoors

30X longer life

Designed for domestic use

and RH328VC

Irwin Unibit HSS Fractional Step Drill Bit Size:1/4" - 1-3/8" clean and durable mounting indoorsSave time by eliminating the need to change drills when drilling round holes in thin materials. Each smaller size drill also acts as a pilot for the next size. Patented single flute cutting edge gives greater control through steps and a true round hole every time. Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates. SpeedPoint tip penetrates faster than previous Unibits and prevents