Irwin 21/32 in. X 6 in. L High Speed Steel Drill Bit Straight Shank

When you need a larger-hole solution that won’t quit, the Irwin 21/32 in. x 6 in. High Speed Steel Drill Bit with Straight Shank delivers reliable, clean holes through metal, wood, and plastics. Built for tough work, it combines a robust HSS core with a Black Oxide finish to extend life in demanding environments.

• Size & geometry: drill diameter 21/32 in, overall length 6 in, flute length 3 in, straight shank with 1/2 in shank diameter for broad compatibility.
• Material & finish: high-speed steel (HSS) for toughness and heat resistance, finished with Black Oxide to reduce friction, improve wear life, and resist corrosion.
• Compatibility: designed to fit standard 1/2 in chucks on most drills, delivering stable performance in a variety of setups—from handheld to benchtop machines.
• Packaging: sold as a single bit packaged in a tube for safe storage and easy organization.

Use cases built for real-world projects: in metalworking, this bit powers through mild steel and aluminum with controlled cutting action, while in woodworking it creates sizable, accurate holes in hardwoods and plywood without causing splintering when paired with proper feed pressure. In plastics, the combination of HSS and Black Oxide helps maintain edge integrity for cleaner bore results even in softer materials. The long flute length allows you to reach deeper into your workpiece, reducing the need to reposition the drill frequently.

Practical tips to maximize performance: keep the drill bit cool with light lubrication when cutting metal, avoid excessive feed pressure to prevent bit deflection, and periodically clear the flute of chips to maintain smooth cutting. Start with a center punch to prevent wandering on metal surfaces, then drill steadily to achieve a precise, burr-free entry.

Ideal for professionals and DIY enthusiasts tackling large-diameter holes with reliability and longevity. Add this Irwin drill bit to your toolkit and experience dependable cutting edges, extended bit life, and consistent results on a range of materials.