Irwin Tools IRWIN Step Drill Bit, 1/8-Inch to 1/2-Inch Step, 1/4-Inch Shank (10231) Silver|Silver metallic 1/2 inches

Step Drill Bit: 1/8" Min, 1/2" Max, 3/8" Shank Dia, Steel, 13 Hole Sizes 3" Step Length, 3" OAL, Bright/Uncoated Finish, Straight Shank, Series Unibit, Tool Material: Steel , Number Of Hole Sizes: 13 , Shank Type: Straight , Series: Unibit , Overall Length (Inch): 3 , Minimum Hole Diameter (Inch): 1/8 , Maximum Hole Diameter (Inch): 1/2 , Shank Diameter (Inch): 3/8 , Step Length (Inch): 3 , Coating/Finish: Bright/Uncoated , Step Increments (Inch): 1/2; 1/8. PRODUCT DESCRIPTION Irwin 10231 Unibit #1 13-Step 1/4-Inch Step Drill Bit, 1/32-inch Steps (1/8- to 1/2- inches) 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. 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 walking. 3-faltted hex shank prevents slipping in drill chuck. Drill diameters etched in flute for easy identification. FROM THE MANUFACTURER UNIBIT 1 13 Hole Sizes (1/8"-1/2"), 1/32" Increments. Features: Drill diameters etched in flute for easy identification. SpeedPoint tip penetrates faster than previous Unibits and prevents walking. 3-faltted hex shank prevents slipping in drill chuck. Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates. Patented single-flute cutting edge gives greater control through steps and a true round hole every time. Save time because you don't need to change drills for different-sized round holes in thin materials. Each drill acts as a pilot for the next size.

• Drill diameters etched in flute for easy identification.
• SpeedPoint tip penetrates faster than previous Unibits and prevents walking. 3-faltted hex shank prevents slipping in drill chuck.
• Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates.
• Patented single-flute cutting edge gives greater control through steps and a true round hole every time.
• Save time because you don't need to change drills for different-sized round holes in thin materials. Each drill acts as a pilot for the next size.