Features
- Bi-metal construction with HSS cutting edge suitable for wood, metal, and plastic
- Continuous slot for easier plug ejection and removal
- Deeper saw design for cutting 2-by dimensional lumber in one pass
- Tooth geometry designed to improve chip removal and reduce wear relative to prior generation designs
- Made in the USA with global materials
Specifications
| Diameter | 4-1/2 in (114 mm) |
| Cutting Depth | 1-3/4 in (44 mm) |
| Arbor | 5/8-18 |
| Teeth Per Inch | 4/5 TPI |
| Color | Yellow |
| Has Plug Eject | Yes |
| Number Of Pieces | 1 |
| Cutting Edge Material | HSS (high-speed steel) |
| Made In | Made in USA with global materials |
| Warranty | None (product listed as not eligible for warranty) |
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Bi-metal hole saw with a high-speed steel cutting edge for drilling in wood, metal, and plastic. The saw has a deeper blade profile to allow cutting through 2-by dimensional lumber in a single pass and a large continuous slot to aid plug ejection. Manufactured in the United States with global materials.
Project Ideas
Business
Dust Collection Port Retrofits
Offer a service installing 4 in dust ports in benches, cabinets, and tool stands. The 4-1/2 in hole saw makes clean, fast cutouts in wood or plastic to pass 4 in PVC. Package includes blast gates, hose adapters, and sealing, priced per port.
Branded Hardwood Coasters/Trivets
Batch-produce 4-1/2 in wood disks from reclaimed lumber and sell them as custom coasters or small trivets. Add laser engraving or branding for corporate gifts, wedding favors, and local souvenirs. Low material cost and quick turnaround with efficient plug ejection.
Herb/Planter Wall Installations
Design, build, and install wall-mounted planter boards for cafes, offices, and model homes. The 4-1/2 in cutouts hold standard 4 in pots safely in 2x lumber. Offer maintenance plans with plant swaps and seasonal styling.
Conference Table Power/Grommet Cutouts
Provide on-site cutting and installation of round tabletop power/data modules and large cable grommets that specify a ~4-1/2 in cutout. Work on wood, laminate, and plastic tops with clean edges, dust control, and template-guided accuracy.
Rain Barrel Overflow Kits
Sell and install overflow/bulkhead kits for rain barrels using 4 in PVC fittings that require 4-1/2 in holes. Service includes drilling plastic drums, fitting strainers, adding overflows to direct water to gardens, and building simple 2x stands.
Creative
Thick Wood Coasters/Trivets
Use the hole saw to cut 4-1/2 in wood disks from 2x lumber in a single pass. Sand, round over, and finish them as chunky coasters or small trivets. Add epoxy inlays, paint dips, or pyrography for unique designs. The plug-eject slot speeds production by clearing the cores quickly.
Wall-Mounted Herb Planter Rack
Cut a series of 4-1/2 in pockets into a 2x8 or 2x10 board to nest standard 4 in nursery pots. Mount the board horizontally as a living kitchen herb rack or vertically for a green wall. Line hole edges with rubber trim or 3D-printed rings for a snug, clean fit.
Mini Cornhole/Beanbag Toss
Build tabletop cornhole boards with 4-1/2 in targets for mini beanbags. Scale the board footprint for coffee-table play, paint custom graphics, and add folding legs. Great as party games, kids’ sets, or themed gifts.
Porthole Shadow Box Frames
Create nautical-style shadow boxes by cutting a 4-1/2 in viewing window in thick stock, then adding an acrylic pane and a backer. Edge the opening with a chamfer or round-over and add brass screws or a faux hatch ring for a maritime vibe.
DIY Dust Separator Lid
Make a shop-vac cyclone/separator using a bucket lid or plywood disk. Cut two 4-1/2 in ports to fit 4 in PVC fittings (nominal 4 in pipe has a 4.5 in OD) for inlet and outlet. Pair with a baffle inside the bucket to drop chips before they reach the vacuum.