Irwin Hanson 10311 Step Drill Bit 7/8" High Speed Steel Self-Starting

The Irwin Hanson 10311 is a high-speed steel step drill bit designed for precise hole drilling in thin materials. This #11 size step bit features a maximum hole diameter of 7/8 inch and delivers professional results across a wide range of applications.

Key Features:

• Single-flute cutting edge provides greater control and smoother transitions through each step size
• SpeedPoint tip technology penetrates faster than previous Unibit designs and prevents bit walking for accurate hole placement
• Hex shank design prevents slipping in drill chuck, ensuring secure grip during operation
• High-speed steel construction for durability and extended tool life
• Self-starting design eliminates the need for pilot holes

Applications:

Ideal for drilling clean, precise holes in thin materials including stainless steel, copper, brass, aluminum, plastic, and laminates. Perfect for electrical work, HVAC installation, metal fabrication, and general construction tasks.

This step drill bit allows you to drill multiple hole sizes with a single bit, making it a versatile and cost-effective addition to any toolbox.