The Diablo DHS3000 Bi-Metal Hole Saw is a 3 inch hole saw built for drilling large, clean holes in wood, plastic, aluminum, sheet metal, steel, stainless steel, drywall, plaster, fiberglass, and nail-embedded wood. This is a bi-metal hole saw designed for multi-material hole cutting with a drill press or hand held drill. Model Number: DHS3000. If you are cutting for locks, pipe runs, vents, electrical work, or general rough-in openings, the big selling point here is simple: more cutting depth and faster changeovers than a basic hole saw setup.

The number that matters most is the 2-3/8 inch cutting depth. Diablo rates that as 40% deeper holes in one pass, and that matters when you are trying to get through thicker stock without backing out and finishing from the other side. For installers and remodelers, that can save time on every opening, especially when you are boring through layered materials like siding over sheathing or working through wood assemblies where shallow cups slow the whole job down.

This hole saw uses a bi-metal construction with a variable tooth design for faster cuts with less vibration. In plain terms, that means it is built to cut a broad mix of materials without beating up the drill more than it has to. Less vibration helps control, especially when you are drilling larger diameters where a hole saw can grab if the setup is sloppy or the feed pressure is wrong.

Another practical feature is the tool-free plug ejection. Anyone who has spent time prying stuck plugs out of a hole saw knows why that matters. When the slug comes out faster, you spend more time drilling and less time digging material out of the cup with a screwdriver. That is the kind of small improvement that actually makes a difference on repetitive work.

The design is also built around Diablo's Snap-Lock Plus mandrel system. That setup is meant to make cup changes quick and easy with less downtime, which is useful if you keep one mandrel in the drill and switch between multiple hole saw sizes. It is worth knowing that the mandrel is required and not included with this DHS3000 bare hole saw, so make sure you have a compatible Diablo Snap-Lock Plus mandrel before the job starts.

For real-world use, this is a good fit for contractors and serious DIY users who want a multi-purpose hole saw that can handle a wide material range without needing a dedicated cup for every single job type. It makes sense for electricians, plumbers, maintenance techs, locksmiths, remodelers, and general contractors who regularly cut larger openings in mixed materials. If you only need a hole saw once in a blue moon, a basic setup may get by. If you swap sizes often and want deeper cuts in one pass, this Diablo system makes a stronger case.

Diablo DHS3000 Bi-Metal Hole Saw Keeps Things Moving

This is a smart pick for users who want deeper cuts, faster plug removal, and a quicker hole saw change system without overcomplicating the setup.

• Who it's for: Electricians, plumbers, HVAC installers, remodelers, locksmiths, maintenance crews, and serious DIY users cutting larger holes in mixed materials.
• Why it stands out: The 2-3/8 inch cutting depth and Snap-Lock Plus compatibility are the real story here. Less rework, less downtime, and easier cup swaps when the job calls for multiple diameters.
• Worth knowing: This is the hole saw only. You need the compatible Diablo mandrel, so do not toss it in the cart assuming it is a complete arbor-and-cup kit.

• What materials can this hole saw cut? It is rated for wood, plastic, aluminum, fiberglass, drywall, plaster, PVC, steel, stainless steel, sheet metal, and wood with nails.
• Does this hole saw include an arbor or mandrel? No. Arbor included is listed as no, and a Diablo Snap-Lock Plus mandrel is required.
• How deep can it cut? The cutting depth is 2-3/8 inches, which Diablo states is 40% deeper than standard hole saws in this category.
• Can it be used in a hand drill? Yes. It is listed for use with either a hand held drill or a drill press.