Features
- Bi-metal construction with HSS cutting edge
- Tooth geometry designed to improve chip removal and tool life (versus prior generation)
- Large continuous slot for easier plug ejection
- Deeper saw design for cutting 2-by lumber in one pass
- Suitable for wood, metal, and plastic
- Compatible with 5/8-18 arbor and common DeWALT arbors listed in product compatibility
Specifications
| Arbor Size | 5/8-18 |
| Diameter | 4-3/4 in (121 mm) |
| Cutting Depth | 1-3/4 in (44 mm) |
| Maximum Drilling Depth | 1.75 in |
| Teeth Per Inch | 4/5 TPI |
| Cutting Edge Material | HSS |
| Body Material | Bi-metal |
| Applicable Materials | Metal, Plastic, Wood |
| Pilot Drill Diameter | 0.25 in |
| Minimum Chuck Size | 1/4 in |
| Number Of Pieces | 1 (one hole saw) |
| Has Plug Eject | Yes |
| Made In Usa | Yes |
| Compatible Arbors | DAH9124PBM, DAH9121PBM, DAH9381PBM, DAH9383PBM |
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Bi-metal hole saw with a high-speed steel (HSS) cutting edge. Made in the USA with global materials. Intended for drilling holes in wood, metal, and plastic. Deeper saw body allows cutting through 2-by dimensional lumber in a single pass. Large continuous slot assists plug ejection. Tooth geometry is designed to improve chip removal and tool life compared to the prior generation.
Project Ideas
Business
Etsy Coaster + Mini-Clock Shop
Produce sets of 4-3/4 in wood discs from offcuts using the hole saw’s easy plug ejection to scale output. Offer custom engraving, epoxy/resin art, branded corporate gifts, or wedding sets. Low material cost, quick batching, and consistent sizing make it a great margin product.
Van/RV/Boat Retrofit Cutout Service
Provide on-site installations of 4 in deck plates, vents, and cup holders in wood, plastic, fiberglass, or thin metal. The bi-metal HSS edge handles mixed materials; the deeper saw body cuts through 2-by framing in one pass. Package services: deck plate installs (common 4-3/4 in cutouts), ventilation ports, and cable pass-throughs.
Chicken Coop Vent Kit
Sell pre-cut panels with 4-3/4 in vent holes, hardware cloth circles, and sliding covers plus screws. Offer sizes to fit common coop wall thicknesses and upsell predator-proof stainless hardware cloth. Use the saw to batch precise holes for consistent, pro-looking kits.
Shop Dust Collection Retrofits
Install round pass-throughs for 4 in dust hoses on benchtops, cabinet doors, and machine enclosures. Cut 4-3/4 in openings and mount flange plates/blast gates that cover the cut. Market to hobby woodshops and makerspaces; the saw’s chip-clearing teeth speed through plywood and 2x framing.
120 mm Fan Porting for Enclosures
Offer precise 4-3/4 in cutouts for 120 mm fan mounts in PC cases, AV racks, reptile enclosures, and grow cabinets. Provide full packages with grills, filters, and speed controllers. The hole saw cuts metal, plastic, and wood, so you can service a wide range of materials on-site.
Creative
Reclaimed Wood Coaster + Mini-Clock Discs
Use the 4-3/4 in hole saw to quickly harvest uniform wood discs from reclaimed boards for coasters or small wall clocks. The large continuous slot makes plug ejection fast, so you can batch out sets, sand the faces, add epoxy inlays or laser engraving, and drill a center hole for a clock movement. Works on hardwoods and even thin sheet metal for mixed-material designs.
Chicken Coop Round Vent Ports
Drill 4-3/4 in ventilation openings in coop walls (the deeper saw design handles 2x lumber in one pass). Back the hole with hardware cloth and add a circular sliding cover or hinged cap. The coarse 4/5 TPI tooth geometry clears chips efficiently in resinous softwoods, keeping cuts clean and fast for multiple vents.
Nautical Porthole Shadow Box
Cut a 4-3/4 in opening in a wood panel and mount a 4 in marine screw-out deck plate (many specify a 4-3/4 in cutout). Create a shadow box behind it for shells, maps, or keepsakes. The bi-metal HSS edge lets you also cut matching holes in plastic/acrylic lids to make a clear window.
Bass-Reflex Speaker Port
Build a small speaker or sub cabinet and cut a 4-3/4 in port hole to accept a 4 in PVC coupler or flared port. The deeper body makes it easy to cut through thicker baffles; choose plywood or MDF. Tune the box with different port lengths and finish with a round grill for a pro look.
120 mm Fan Mount for Terrariums/PC/Grow Cabinets
Create a clean 4-3/4 in round opening that pairs nicely with 120 mm fans and grills for airflow in enclosures. The hole saw’s tooth geometry reduces melting in plastics and clears chips in thin sheet metal, giving tidy edges for screw-on grills and filter frames.