The Diablo Metal Demon 7/16 in. x 5.6 in. L Stainless Steel Drill Bit with a 3-Flat Shank is built for serious metalwork. Crafted from corrosion‑resistant stainless steel, this bit is ready to tackle tough materials while standing up to humid shop environments. Its generous overall length and extended flute give you the reach and material removal you need for clean, accurate holes in thicker metals.
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Diameter: 7/16 in. — precise sizing for standard metalworking tasks
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Overall length: 5.6 in. for extended reach in deep holes
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Flute length: 3.7 in. to balance aggressive cutting with control
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Shank: 3-flat shank for enhanced grip and torque transfer, reducing slip in high‑torque drilling
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Material: Stainless steel for durability and corrosion resistance
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Packaging: Carded, sold as a single piece
Why this bit stands out
The Metal Demon line from Diablo is engineered for reliability under pressure. The 3-flat shank design provides a more secure bite in your chuck, delivering steadier starts and less wandering when you’re drilling through hard metals. Stainless steel construction resists rust and wear, so you can reuse the bit across multiple jobs without compromising performance. Precision-ground cutting edges help minimize burrs, resulting in smoother holes in steel, stainless steel, and other common metals.
Ideal use cases
- Drilling through stainless steel panels, frames, and structural components
- Automotive repair and fabrication projects where strong, consistent holes are essential
- Metalworking tasks in DIY workshops and professional shops
- Maintenance and fabrication work on machinery and equipment made of mild steel or cast metals
Pro tips for best results
For clean, accurate holes and longer bit life:
- Use a lubricating coolant or light oil to reduce heat and prolong cutting edge life
- Start at a lower speed to establish a stable pilot cut, then increase pace as needed
- Clear chips frequently to prevent binding and maintain a smooth cutting action
Choose the Diablo Metal Demon 7/16 in. x 5.6 in. stainless steel drill bit with a 3-flat shank when you need dependable metal drilling performance that delivers precise holes, durable construction, and consistent results across a range of metalworking applications.
