- This product is easy to use.
- This product is highly durable
- This product is manufactured in United States.
- Step drill that produces true, round holes
- Non-skid tip means no need for center punches
- 3 flatted shanks prevent drill chuck slipping
- Made from durable heat-treated molybdenum steel
- Full lifetime warranty
Irwin 10234 Unibit #4 12-Step High Speed Steel 3/8-inch Step Drill Bit, 1/16-inch Steps (3/16- to 7/8-inch) Save 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. Made from industrial-grade high-speed molybdenum steel heat treated for maximum durability. 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 walking. Non-skid tip does away with the need for center punches; 3-faltted hex shank prevents slipping in drill chuck. Drill diameters etched in flute for easy identification. Backed by a full lifetime warranty.The Irwin 10234 UniBit #4 12-Step High Speed Steel Fractional Self-Starting Step Drill has a single-flute cutting edge to give you more control and produce true, round holes. Twelve holes range from 3/16 to 7/8 inches, in 1/16-inch increments. A non-skid tip does away with the need for center punches, while the three flatted shanks prevent slipping in the drill chuck. This drill is made from industrial-grade high-speed molybdenum steel heat treated for maximum durability, and it is ideal for work on thinner materials. The multiple steps mean you don’t have to have a toolbox with specific size drill bits, and this drill is backed by a full lifetime warranty.
List Price: $ 29.74
Price: $ 19.90
Reprint Please Indicate: Power Drill Drivers » Irwin Tools Unibit #4 3/16-Inch to 7/8-Inch Step-Drill Bit, 3/8-Inch Shank (10234)