Diablo DHS4750 4-3/4 Inch Hole Saw is a large-diameter bi-metal hole saw built for tradespeople who need fast, clean openings in a range of common jobsite materials. This is a bi-metal hole saw designed for cutting 4-3/4 inch holes in wood, plastic, aluminum, metal, and stainless steel. Model Number: DHS4750. If you are running duct, venting, access holes, or other large pass-through openings, the big advantage here is depth and speed without turning the job into a fight.

The headline spec is the 2-3/8 inch cutting depth. Diablo rates that as 40% deeper cuts, and that matters because deeper hole saws can get through thicker assemblies in one pass instead of leaving you to finish from the other side. On the job, that means less setup, better alignment, and a cleaner workflow when you are boring through layered material.

This saw uses Diablo's bi-metal construction along with a variable tooth design. In plain terms, the tooth pattern is built to cut faster and reduce vibration. That helps when you are drilling larger holes, because big hole saws can chatter, grab, and beat up both the material and your wrists if the cut is not running smoothly. A more controlled cut usually means a cleaner finished opening and less wear on the operator.

One of the more practical features is the Snap-Lock Plus mandrel interface. The Diablo DHS4750 4-3/4 Inch Hole Saw requires a Diablo Snap-Lock mandrel, and the system is meant to make size changes quicker and easier. If you already use Diablo hole saws across different diameters, that common mandrel fit can save time during repetitive drilling. Diablo also states that the mandrel system fits all Diablo hole saws from 5/8 inch to 6 inch diameter, which makes this saw part of a broader accessory platform rather than a one-off cutter.

Plug removal is another area where this saw is aimed at real-world use. Tool-free plug ejection speeds up material removal after the cut, which matters more than people think once you are drilling multiple openings back to back. With large-diameter hole saws, getting the core out can be the most annoying part of the process. Faster plug ejection keeps you moving.

In terms of fit and setup, this is sold as an individual hole saw, not a complete kit, and the arbor is not included. A minimum 3/8 inch chuck size is required. That makes this a good match for users who already have a compatible drill and plan to build around Diablo's mandrel system. If you are expecting an all-in-one package, just know up front that you need the required mandrel separately.

Material range is broad enough to cover a lot of common install and remodel work. The listed applications include wood, wood with nails, PVC, plaster, gypsum, fiberglass, aluminum, steel, and sheet metal. That puts this hole saw in a useful spot for HVAC, electrical, plumbing, lock and hardware installation, and general construction work where one cutter may need to move from siding to sheathing to light metal without a full tool change.

Who should buy it? This size is best for pros and serious DIY users who specifically need a 4-3/4 inch opening and want the convenience of a quick-change hole saw system. If you are doing occasional light-duty drilling, a cheaper basic saw might get you through one task. If you are already on the Diablo hole saw platform or want deeper one-pass capacity with faster changeover, this one makes more sense.

Diablo DHS4750 4-3/4 Inch Hole Saw for Faster Big-Hole Work

This is a smart pick for anyone who needs a large hole saw that cuts deeper, clears plugs faster, and works within a quick-change mandrel system.

• Who it's for: Pros and serious DIY users cutting larger openings for ducting, venting, pass-throughs, or mixed-material install work.
• Why it stands out: The 2-3/8 inch cutting depth is the big selling point, and the Snap-Lock Plus setup makes more sense than old-school hole saw changeovers if you are using multiple sizes.
• Worth knowing: This is not a ready-to-run kit. The arbor is not included, and you need the required Diablo Snap-Lock mandrel to use it.

• What materials can this hole saw cut? It is listed for wood, plastic, aluminum, metal, stainless steel, PVC, plaster, gypsum, fiberglass, sheet metal, and wood with nails.
• Does this hole saw include an arbor? No. The arbor is not included.
• What mandrel does it use? It requires a Diablo Snap-Lock mandrel and is designed to work within the Snap-Lock Plus mandrel system.
• What is the cutting depth? The cutting depth is 2-3/8 inches, also listed as 60 mm.