Irwin Hanson 66704ZR High Speed Steel Aircraft Extension Drill Bit Set 6-Piece 1/16" - 3/16"

The Irwin Hanson 66704ZR is a 6-piece aircraft extension drill bit set designed for drilling in hard-to-reach areas and running wires and cables through confined spaces. These extra-long drill bits feature extended shanks that provide superior reach where standard length bits cannot access.

Key Features:

• Constructed from M-2 high speed steel for optimal combination of strength, heat resistance, and wear resistance
• Extra-length design ideal for drilling in tight spaces and running electrical wiring
• Aircraft extension configuration provides extended reach for hard-to-access areas
• 135-degree split point tip starts on contact with less walking for improved accuracy
• Set includes 6 commonly used sizes ranging from 1/16" to 3/16"
• Designed for use in metal, wood, and plastic materials

This professional-grade drill bit set is essential for electricians, HVAC technicians, automotive professionals, and anyone who needs to drill through walls, studs, or tight engine compartments. The high speed steel construction maintains sharp cutting edges even under high heat conditions.