Meet the Diablo DHS3875 3-7/8" Bi-Metal Hole Saw — a purpose-built solution for faster, deeper hole cutting in demanding applications. Designed for professionals who value speed, accuracy, and fewer interruptions, this hole saw pair combines rugged bi-metal construction with a next‑generation mounting system to transform how you drill through tough materials.

Why this matters

• Faster cutting performance is achieved through a Variable Tooth Design that delivers clean, aggressive bites—reducing pass repeats and saving time on every job.
• Deeper holes in a single pass are possible thanks to an extended cutting length, letting you reach farther without swapping tools or multiple steps.
• Ridiculously simple attachment — the Diablo hole saw system and mandrel design streamline mounting, so you can switch sizes quickly and confidently without fighting with hardware.
• Tool-free plug ejection means less downtime spent clearing away waste between cuts, keeping your workflow steady and efficient.
• Bi-Metal reliability delivers long-lasting performance across common drilling materials, making this a versatile choice for metal, wood, and mixed-material projects.

Key features that set the DHS3875 apart

• Diameter: 3-7/8" — a substantial opening for larger projects while remaining compatible with standard drill setups.
• Bi-Metal construction for durability and versatile material compatibility.
• Innovative hole saw system and mandrel design for quick, secure mounting and easy swaps between sizes.
• Variable Tooth Design for faster, cleaner cuts and smoother hole walls.
• Ultimate cutting length designed to bore deeper holes in a single pass, reducing the number of steps in your workflow.
• Tool-free plug ejection to clear debris rapidly as you work.

Who benefits from the Diablo DHS3875

Ideal for electricians, plumbers, metalworkers, carpenters, and DIY professionals who tackle thick materials or require large-diameter holes with speed and precision. Whether you’re installing conduit, running large bolts, or creating access points in structural metal or wood, this hole saw helps you get the job done faster with less fuss.

Practical usage tips

• Pair the DHS3875 with the compatible mandrel to maximize mounting efficiency and stability during cutting.
• Start with a clear pilot guide or center mark to maintain alignment for precise, concentric holes.
• Let the tool do the work—apply steady pressure and maintain a consistent feed rate to leverage the Variable Tooth Design for clean edges.
• Use the tool-free plug ejection feature between cuts to keep your workflow continuous and reduce downtime.

With the Diablo DHS3875 3-7/8" Bi-Metal Hole Saw, you get a high-performance solution engineered to speed up projects, deepen reach, and simplify setup. It’s a smarter choice for serious drilling tasks where efficiency and precision matter as much as durability.