Greenlee Bi-Metal Variable Pit...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$17.44
Greenlee Bi-Metal Variable Pitch Hole Saw

Greenlee Bi-Metal Variable Pitch Hole Saw

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Model: 825-2

In Stock (leaves warehouse same day if ordered before 3pm ET)

$17.44
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Greenlee 2-1/2" Bi-Metal Variable Pitch Hole Saw with Steam Oxide Finish

Professional Cutting Performance for Multiple Materials

The Greenlee 2-1/2" Bi-Metal Variable Pitch Hole Saw delivers professional cutting performance across steel, tin, aluminum, fiberglass, wood and plastic applications. Featuring an extra-tough bi-metal blade made of highest grade tool steel with steam oxide finish for cooler running operation, this hole saw provides reliable cutting through demanding materials with enhanced durability and performance.

Professional Features & Benefits

  • 2-1/2" Cutting Diameter: Provides precise hole cutting for standard electrical and plumbing applications with consistent results.
  • Bi-Metal Construction: Extra-tough blade made of highest grade tool steel delivers superior cutting performance and extended blade life.
  • Steam Oxide Finish: Reduces heat buildup during cutting operation for cooler running performance and improved blade longevity.
  • Deep 1-5/8" Cut Depth: Allows complete cutting through standard 2x4 wood studs in single pass operation.
  • Extra-Thick Backplate: Minimizes vibration during cutting for smoother operation and improved cutting accuracy.
  • Variable Pitch Design: Optimizes cutting performance across multiple material types for versatile professional applications.
  • Multi-Material Capability: Cuts through steel, tin, aluminum, fiberglass, wood and plastic for comprehensive job site versatility.

Technical Specifications

  • Arbor Size: 7/16 In shank size.
  • Country Of Origin: China
  • Cutting Size: 2-1/2 In
  • Product Type: Bi-Metal Hole Saw

Installation & Operation

  1. Mount the hole saw securely on compatible arbor with 7/16" shank size following manufacturer specifications.
  2. Select appropriate drill speed based on material type and thickness for optimal cutting performance.
  3. Position drill perpendicular to work surface and begin cutting with steady, controlled pressure.
  4. Allow the variable pitch teeth to engage material gradually for smooth cutting action.
  5. Maintain consistent feed rate throughout cutting operation to prevent overheating or binding.
  6. Clear debris periodically during deep cuts and allow cooling as needed for extended blade life.

Professional Applications

  • Electrical installations requiring precise conduit and cable entry holes
  • Plumbing applications for pipe routing through framing members
  • HVAC ductwork connections and ventilation system installations
  • General construction cutting through wood studs and structural members
  • Metal fabrication and sheet metal cutting applications
  • Maintenance and repair work across multiple material types
  • Professional contractor applications requiring reliable cutting performance

Why Choose Greenlee Quality?

Greenlee delivers professional-grade cutting tools engineered for demanding job site conditions. The bi-metal construction with highest grade tool steel and steam oxide finish ensures reliable performance and extended service life, while the extra-thick backplate design minimizes vibration for superior cutting control and accuracy in professional applications.

Manufacturer Resources

Spec Sheet

Product Specs

Product Type:
Hole Saw
Department:
Electrical
Arbor Size:
7/16 In shank size.
Product Subgroup:
Hole Saws & Bits
Product Group:
Power Tools & Accessories

Greenlee 825-2 – Frequently Asked Questions

1) What arbor does the Greenlee 825 bi-metal hole saw need?
The Greenlee 825 series hole saws take an arbor with a 7/16 inch shank size. The saw is sold as the cutter only, so you need a compatible 7/16 inch arbor with pilot drill to mount it in your drill.
2) Will a 2-1/2 inch bi-metal hole saw cut all the way through a 2x4 stud in one pass?
Yes. The Greenlee 825 2-1/2 inch saw has a 1-5/8 inch cut depth, which clears the 1-1/2 inch actual thickness of a standard 2x4 in a single pass. For anything thicker, like doubled plates or a 4x4, you will need to cut from both sides.
3) What sizes does the Greenlee 825 bi-metal hole saw come in?
Two cutting diameters: 2 inch (part 825-2) and 2-1/2 inch (part 825-2-1/2). Both use the same 7/16 inch arbor shank, so one arbor serves both.
4) Can I use this hole saw on sheet metal and steel, or is it wood only?
Bi-metal with variable pitch teeth, so it handles steel, tin, aluminum, fiberglass, wood and plastic. The blade is tool steel with a steam oxide finish that runs cooler, which is what lets it survive metal cutting. Drop your drill speed for steel and keep a steady feed to avoid overheating the teeth.
5) Which size do I need for 2 inch EMT or rigid conduit?
Conduit is sized by trade size, not outside diameter, so a 2 inch conduit run needs a hole bigger than 2 inches. Of the two Greenlee 825 sizes, the 2-1/2 inch (825-2-1/2) gives you the clearance; the 2 inch saw suits trade sizes below that. Check the actual OD of the fitting or connector going through the hole before you pick.
6) Why does this hole saw have a thick backplate?
The extra-thick backplate on the 825 series cuts vibration during the cut, which matters most when you are starting a large diameter hole in sheet metal or at an awkward angle overhead. Less chatter means the pilot stays put and the hole edge comes out cleaner.
7) Is the Greenlee 825 hole saw made in the USA?
No. The 825 bi-metal variable pitch hole saw is manufactured in China.
How fast can I get the Greenlee 825-2 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Greenlee 825-2 come with a warranty?
Absolutely. The Greenlee 825-2 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Greenlee 825-2?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Greenlee 825-2 from ZenSupply?
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