Diablo Metal Demon 5/32 in. X 3 in. L Metal Drill Bit 3-Flat Shank

The Diablo Metal Demon 5/32 in. x 3 in. L Drill Bit with a 3-flat shank is built for serious metalworking tasks where precision and reliability matter. This single-bit, bulk-packaged tool is ready to take on steel, aluminum, and other metals with confidence, delivering clean holes and dependable performance project after project.

Key specifications

• Diameter: 5/32 in
• Overall length: 3 in
• Flute length: 1.7 in
• Shank: 3-flat shank
• Material/Brand: Metal Demon by Diablo
• Package: Bulk, 1 piece per package

What makes it stand out

• 3-flat shank for secure grip — the three flat sides provide improved torque transfer and reduced slipping in the chuck, especially under metal-drilling loads.
• Purpose-built for metal — designed to stay sharp and true when penetrating tougher materials, delivering straighter holes with less wandering.
• Optimized hole depth — with a flute length of 1.7 in within a 3 in overall length, you get a practical cutting depth for common metalworking tasks without over-penetration.

Ideal use cases

This drill bit is a dependable choice for hobbyists and professionals working on metal projects. Use it for:

• Drilling through steel, cast iron, and aluminum sheets or plates
• Creating pilot holes for larger bits during metal fabrication
• General-purpose metal drilling where a compact, high-torque bit is advantageous

Practical guidance for best results

To maximize life and performance, maintain steady pressure and ensure the bit remains perpendicular to the work surface. Use proper lubrication or cutting fluid when drilling metals to reduce heat and wear, and select the appropriate drill speed for the material you’re penetrating. Keep the drill bit cool during extended cutting sessions and allow it to cool between holes to preserve edge integrity.

Designed under the Metal Demon line, this 5/32 in. drill bit pairs with standard drills and drill presses to handle everyday metal projects with professional-like results. Add it to your toolkit for consistent performance, reduced slippage, and holes you can rely on—every time.