Greenlee 7/8" Bi-Metal Hole Sa...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$64.79
$14.79
Greenlee 7/8" Bi-Metal Hole Saw with 1-5/8" Cutting Depth Professional Cutting Tool

Greenlee 7/8" Bi-Metal Hole Saw with 1-5/8" Cutting Depth Professional Cutting Tool

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Model: 825-7/8
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$64.79
$14.79
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Greenlee 7/8" Bi-Metal Hole Saw with 1-5/8" Cutting Depth Professional Cutting Tool

Professional bi-metal construction for versatile material cutting applications

The Greenlee 7/8" Bi-Metal Hole Saw delivers professional-grade cutting performance with its extra-tough bi-metal blade construction and 1-5/8" cutting depth capability. Engineered with an extra-thick backplate to minimize vibration, this hole saw provides smoother, easier cutting through multiple materials including steel, tin, aluminum, fiberglass, wood, and plastic. The steam oxide finish ensures cooler operation during extended use.

Professional Features & Benefits

  • 7/8" Cutting Size: Precise diameter for standard electrical and plumbing applications with consistent hole quality.
  • 1-5/8" Cutting Depth: Deep cut capability allows cutting through 2x4 wood studs in single pass operation.
  • Bi-Metal Construction: Extra-tough blade made of highest grade tool steel provides superior durability and extended cutting life.
  • Extra-Thick Backplate: Minimizes vibration during cutting for smoother operation and improved control.
  • Steam Oxide Finish: Cooler running performance reduces heat buildup and extends blade life during continuous use.
  • Multi-Material Capability: Cuts through steel, tin, aluminum, fiberglass, wood, and plastic for versatile job site applications.
  • USA Manufacturing: Made in United States ensuring consistent quality and reliable performance standards.

Technical Specifications

  • Arbor Size: 1/4, 5/16 or 7/16 In shank size.
  • Country Of Origin: United States
  • Cutting Size: 7/8 In
  • Product Type: Bi-Metal Hole Saw

Installation & Operation

  1. Mount the hole saw securely on compatible drill chuck or arbor with appropriate shank size (1/4, 5/16, or 7/16 inch).
  2. Mark the cutting location and ensure workpiece is properly secured and supported during cutting operation.
  3. Start drilling at low speed to establish the cut, then increase to optimal cutting speed for the material being cut.
  4. Apply steady, consistent pressure while allowing the bi-metal teeth to do the cutting work without forcing.
  5. Clear chips periodically during deep cuts and allow cooling time for extended cutting operations.
  6. Complete the cut and remove the hole saw carefully, clearing any remaining material from the cutting area.

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 and remodeling projects
  • Industrial maintenance and repair operations
  • Professional contractor and tradesman applications

Why Choose Greenlee Quality?

Greenlee delivers professional-grade cutting tools with USA manufacturing quality and bi-metal construction for reliable performance. The extra-thick backplate design and steam oxide finish demonstrate Greenlee's commitment to professional tool durability and user experience in demanding job site conditions.

Manufacturer Resources

Spec Sheet

Product Specs

Arbor Size:
1/4, 5/16 or 7/16 In shank size.
Country Of Origin:
United States
Cutting Size:
7/8 In
Product Type:
Hole Saw
Department:
Electrical
Product Subgroup:
Hole Saws & Bits
Product Group:
Power Tools & Accessories

Greenlee 825-7/8 – Frequently Asked Questions

1) Will a Greenlee 825-7/8 hole saw cut all the way through a 2x4 stud in one pass?
Yes. The 825-7/8 bi-metal hole saw has a 1-5/8 inch cutting depth, which clears the 1-1/2 inch actual thickness of a nominal 2x4, so you can bore a stud in a single pass without flipping the member. On anything thicker, you will need to cut from both sides.
2) What arbor do I need for the Greenlee 825-7/8 hole saw, and is one included?
The saw cup itself is what you are buying; it mounts on an arbor with a 1/4, 5/16 or 7/16 inch shank. Order the arbor and pilot drill separately if you don't already have one that matches your chuck.
3) Can this Greenlee hole saw cut sheet steel and aluminum, or is it only for wood?
Bi-metal, so it handles steel, tin, aluminum, fiberglass, wood and plastic. The tooth edge is high grade tool steel welded to a flexible body, which is what lets one cup go from a wood stud to a metal stud or an enclosure wall. Run metal at low speed and keep the teeth cutting rather than rubbing.
4) What part number do I order for the Greenlee 7/8 inch bi-metal hole saw?
Greenlee manufacturer part number 825-7/8. The number after the dash is the cut diameter, so the 825 series runs across sizes and the 7/8 suffix is the one that gives a 7/8 inch hole.
5) Why does the 825-7/8 have a thick backplate and a steam oxide finish?
Two durability features. The extra-thick backplate stiffens the cup so it chatters less when the teeth first bite, which matters on thin sheet metal where a vibrating saw walks. The steam oxide finish runs cooler, slowing the heat buildup that dulls teeth on long or repeated cuts.
6) Is the Greenlee 825-7/8 hole saw made in the USA?
Yes, country of origin is the United States. That matters if you're buying against a Buy American or domestic-preference requirement on a public or institutional job.
How fast can I get the Greenlee 825-7/8 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 825-7/8 come with a warranty?
Absolutely. The Greenlee 825-7/8 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 825-7/8?
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 825-7/8 from ZenSupply?
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