Meet the Diablo DHS2125CT 2-1/8" Carbide Teeth Hole Saw — the tool that bridges wood and metal cutting in one robust bit. Engineered by Diablo to outperform standard hole saws, these carbide-tooth bits deliver longer life and faster cuts, especially when faced with nail-embedded wood, cast iron, stainless steel, and other challenging materials.

Why this is unlike ordinary hole saws

• Carbide teeth, relentless performance: specifically designed to stay sharp longer and resist wear across wood, nails, plastics, aluminum, cast iron, stainless steel, and various metals.
• Up to 50x longer cutting life: when compared with traditional bi-metal hole saws, reducing downtime and replacement costs.
• Faster, smoother holes: efficient tooth geometry that bites through tough materials with less resistance and fewer wobble issues.

Who should use it

Electricians, plumbers, carpenters, remodelers, and serious DIY enthusiasts who regularly work with mixed-material projects will benefit from a single tool that can cut through wood and metal without swapping bits.

Ideal use cases

• Drilling through drywall and studs to install outlets or pass-throughs in wood frames.
• Cutting clean holes in nail-embedded wood without tearing out the surrounding material.
• Engaging metal work: aluminum, cast iron, stainless steel fastener blocks, and more.
• Renovation projects that require quick, reliable holes without multiple tools.

How to get the best results

1. Pair the DHS2125CT with a compatible hole saw arbor and your drill (cordless or corded). Ensure proper alignment to prevent wandering.
2. For metal or hard material, start at a low speed and apply steady, light pressure to avoid tooth chatter.
3. Let the carbide teeth do the work; avoid forcing the bit. If venting is needed, consider stepping up to the final diameter gradually.
4. For nail-embedded wood, maintain moderate feed pressure and a sharp cut; pause if you notice smoke or burning, then resume with a cooler pass.

Specifications

• Diameter: 2-1/8"
• Model: DHS2125CT
• Tooth type: Carbide
• Material compatibility: Wood, nail-embedded wood, plastic, aluminum, cast iron, stainless steel, and other metals
• Longevity: Up to 50x longer cutting life than bi-metal hole saws