A 75mm drill bit typically costs $8-$220, with common consumer bits averaging about $35 and diamond core bits costing more. The 75mm drill bit price depends mainly on bit type, cutting material, shank compatibility, and whether it is intended for wood, metal, masonry, or concrete.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Wood hole saw | $8 | $18 | $45 | Usually needs an arbor |
| Bi-metal hole saw | $12 | $30 | $70 | For sheet metal and some wood |
| Diamond core bit | $25 | $85 | $220 | Price varies with segment and length |
| Masonry or carbide bit | $15 | $40 | $100 | Check hammer-drill compatibility |
Typical prices for a 75mm hole saw or core bit
A basic 75mm (about 2.95-inch) hole saw for wood is often $8-$45. A bi-metal model for mixed materials commonly runs $12-$70, while a diamond core bit for concrete or tile can cost $25-$220. These are bit-only retail estimates, not prices for a drill, arbor, or drilling service.
For most occasional wood or sheet-metal work, a 75mm hole saw costs about $18-$35. Trade-grade diamond bits with longer barrels, stronger segments, or wet-cutting capability tend to sit near the top of the range. Assumptions: U.S. retail pricing, one new bit, standard 75mm diameter, before tax and shipping.
What the 75mm bit quote includes
Listings can appear similar while including different parts. A hole saw may be sold alone or bundled with an arbor and pilot bit; a core bit may be priced without the machine adapter. Confirm the included shank and accessories before comparing prices.
| Cost component | Typical price | What to check |
|---|---|---|
| Cutting bit | $8-$220 | Material, depth, and intended surface |
| Arbor or adapter | $8-$35 | Shank size and drill compatibility |
| Pilot bit or guide | $3-$15 | Whether the kit includes it |
| Replacement diamond segments | $15-$60 | Compatibility with the core bit |
| Shipping and tax | $0-$25 | Varies by seller and order size |
A lower advertised price may exclude the arbor or machine-specific adapter. Assumptions: typical online or hardware-store accessory pricing; premium proprietary adapters can cost more.
How cutting material and bit type shift the price
Tooth design and cutting material determine which surfaces a bit can handle. High-speed-steel or carbon-steel hole saws are economical for softer materials, while bi-metal teeth are more durable for repeated cuts in wood, plastic, and thin metal. They are not substitutes for a diamond bit when cutting tile, masonry, or concrete.
Diamond core bits range from roughly $25-$75 for basic tile or light-duty use to $80-$220 for heavier-duty concrete models. Carbide-tipped masonry bits commonly cost $15-$100, but the correct format depends on whether the job needs a hole saw, core barrel, or a smaller twist bit. Choosing for the actual surface is more important than choosing by diameter alone.
Will a 75mm bit fit the drill and surface?
Fit can affect the total purchase price and whether the tool is safe to use. A hole saw with a 1/2-inch shank may suit a compatible drill, but a large 75mm cutter can demand substantial torque. Some concrete core bits use an SDS-Plus or SDS-Max adapter, while larger systems may require a dedicated core drill.
Cut depth also matters: a 30-40mm-deep saw can be unsuitable for a thick wall or timber, even when the diameter is correct. Concrete bits intended for dry use, wet use, or reinforced concrete may have different segment designs and prices. Check diameter, cutting depth, shank, drill speed, and wet-or-dry rating together.
What drilling labor adds to the bit price
When a contractor supplies the bit and makes the opening, the charge is usually driven by access, surface, reinforcement, and cleanup—not just the bit’s retail cost. A straightforward 75mm hole through wood or drywall may add about $50-$150 in labor, while a concrete core-drilling visit can run $150-$400 or more, including setup and a minimum service charge.
Concrete cutting may be billed per hole, per inch of depth, or by a minimum call-out. Rebar, difficult access, water control, and multiple floors can raise the estimate. Labor estimate example: 1-2 hours at $75-$125 per hour, plus equipment and setup. Ask whether the quote includes the bit, setup, dust control, and disposal.
Three 75mm bit purchases at different budgets
A homeowner making a single opening in plywood might spend $12-$25 for a basic wood hole saw and pilot bit. A maintenance worker making repeated holes in sheet metal and plastic might pay $25-$60 for a bi-metal set or one durable cutter. These examples do not include a drill or labor.
| Example | Bit and accessories | Estimated total |
|---|---|---|
| One plywood opening | Basic saw $10-$20, arbor $8-$15 | $18-$35 |
| Repeated mixed-material cuts | Bi-metal saw $25-$50, arbor $10-$20 | $35-$70 |
| Concrete core opening | Diamond bit $80-$180, adapter $15-$35 | $95-$215 |
The concrete example assumes the buyer already has a compatible core drill. A rental or contractor service is a separate expense and may be more economical for one hole.
How to lower the cost without buying the wrong bit
First, match the bit to the material and required depth; an inexpensive wood saw will not save money if the job requires diamond cutting. For a one-time opening, compare the cost of a suitable bit and adapter with a tool rental or contractor minimum charge. For repeated work, a sturdier trade-grade bit may reduce replacement spending.
Check whether a kit includes the arbor, pilot bit, and adapter, and compare the complete checkout price rather than the headline listing. Buying a multipack makes sense only when the extra sizes will be used. Avoid paying for premium coatings or heavy-duty segments unless the material, cut frequency, or service life requires them. Confirm return terms before ordering, since opened cutting accessories may not be returnable.