Greenlee Textron 1-1/8" Step Bit - 30008

Hole Sizes: 1/2", 7/8" and 1-1/8" (3.2 - 34.9 mm)Cut Up Through 3/8", 9.5 mm, Mild Steel, Copper, Brass, Aluminum, Wood, Plastic & Laminates, Unique Split Tip Design Penetrates Through Steel Faster, Resists Walking Or Skidding, Even On Round Surfaces, Balanced, Double Flute Construction. # Overall Length: 2-15/16"# Minimum Chuck Size: 3/8"# Maximum Material Thickness: 10 gauge