1-9/16 (40 mm) hole saw

Features

  • Bi-metal construction for cutting a range of materials (wood, metal, plastic)
  • Tooth geometry designed to improve chip removal and tool life (vs. prior generation)
  • Large continuous slot to assist plug ejection and removal
  • Deeper cup design allows cutting 2-by dimensional lumber in one pass
  • Made in the USA with global materials

Specifications

Hole Diameter 1-9/16 in (40 mm)
Maximum Drilling / Cutting Depth 1.75 in (44 mm)
Blade Material Bi-metal
Pilot Drill Diameter 0.25 in (1/4 in)
Minimum Chuck Size 1/4 in
Contents 1 hole saw
Case Included No
Fits Arbors DAH9124PBM, DAH9121PBM, DAH9381PBM, DAH9383PBM
Number Of Pieces 1
Made In USA with global materials

Bi-metal hole saw designed for cutting wood, metal, and plastic. Features a deeper cup for cutting 2-by dimensional lumber in one pass, a slot for plug ejection, and tooth geometry intended to improve chip removal and service life compared with the prior DEWALT bi-metal generation. Made in the USA with global materials.

Model Number: DAH180025

Project Ideas

Business

Office cable grommet retrofit service

Offer on-site drilling and installation of 1.5 in grommets in desks, conference tables, and counters. Use the bi-metal hole saw to tackle wood, laminate, and light sheet metal. Price per hole with volume discounts for co-working spaces; upsell cable trays and wireless charger cut-ins.


Bluebird house kits and finished boxes

Batch-produce birdhouse fronts with 1-9/16 in entry holes and matching predator guard plates. Sell flat-pack kits (pre-cut, pre-drilled) and finished boxes locally or online. The deeper cup speeds work through 2x stock, keeping costs down while hitting popular springtime demand.


Wedding/event candle centerpieces

Mass-produce rustic candle blocks and runners with 1-9/16 in wells for tea lights/votives. Offer rental or purchase options, color palettes to match themes, and laser-engraved names/dates. Efficient plug ejection shortens cycle time for profitable batches.


Branded mini clock gifts

Create corporate or realtor gifts using 1-9/16 in clock inserts in custom wood plaques. Add logo engraving and gift boxing. Sell in bulk with tiered pricing; quick, repeatable production thanks to the consistent hole size and one-pass cuts in 2-by material.


Pre-drilled hydroponic/bucket lids

Drill 40 mm holes in plastic buckets/tote lids for uniseals, bulkheads, or net-pot adapters that call for ~1.5–1.6 in cutouts. Offer kits with gaskets/fittings and clear sizing charts; verify fit with your chosen brand. The bi-metal teeth handle plastics cleanly for a professional look.

Creative

Tea-light and votive centerpiece blocks

Bore 1-9/16 in recesses into 2x lumber to snugly fit standard tea lights or 1.5 in votives. The deeper cup lets you cut 2-by stock in one pass, and the plug-ejection slot speeds clearing slugs. Stain, paint, or burn patterns, and arrange holes in rows or zigzags for striking table decor.


Bluebird/tree swallow birdhouses + predator guards

Cut 1-9/16 in entry holes in 2x cedar/pine fronts in a single pass. Pair with a predator guard plate (a second, slightly extended face with the same hole) to compensate for the slightly larger opening and protect nesting birds. Add hinged clean-out and roof overhang for a polished build.


Desk cable pass-throughs

Drill clean 1-9/16 in pass-throughs in wood or laminate desktops and fit 1.5 in desk grommets that often call for a 1-9/16 in cutout. The bi-metal construction handles thin metal cord trays or trim rings too. Great for building custom charging stations or tidy home-office setups.


Mini clock insert desk plaques

Many off-the-shelf clock inserts specify a 1-9/16 in mounting hole. Cut the opening in hardwood plaques or live-edge slabs, sand, oil, and press-fit the insert for elegant gifts. Add engraved names or dates to turn them into personalized keepsakes.


Bottle cap inlay art boards

Lay out a grid and drill shallow 1-9/16 in pockets to recess bottle caps for bar signs, maps, or logo art. Use a depth stop or avoid drilling through, or drill through a thin face and glue a backer to capture the caps. The slot helps remove wood plugs cleanly for reuse in other crafts.