Greenlee 7/8" Quick-Change Car...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$109.94
$59.94

Greenlee 7/8" Quick-Change Carbide-Tipped Hole Cutter with Split-Point Pilot Drill

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Model: 645-7/8
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$109.94
$59.94
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Greenlee 7/8" Quick-Change Carbide-Tipped Hole Cutter with Split-Point Pilot Drill

Professional precision cutting for metal fabrication and electrical applications

The Greenlee 7/8" Quick-Change Carbide-Tipped Hole Cutter delivers professional-grade performance for cutting clean, burr-free holes in stainless steel, mild steel, aluminum, copper, brass, fiberglass and plastics. Featuring tungsten carbide teeth optimized for fast cutting and maximum life in stainless steel with no oil required, this hole cutter includes a split-point cobalt steel pilot drill with step design for accurate metal cutting with less force and a flange stop to eliminate over-drilling.

Professional Features & Benefits

  • 7/8" (22.2 mm) cutting diameter: Precisely sized for 1/2" conduit applications and versatile metal fabrication tasks
  • Tungsten carbide teeth: Optimized design provides fast, easy cutting and maximum tool life in stainless steel without requiring cutting oil
  • Quick-change connection: Switch between cutter sizes without re-chucking using simple push and turn connection for improved productivity
  • Split-point cobalt steel pilot drill: Step design enables fast, accurate metal cutting with reduced force requirements
  • Flange stop design: Eliminates over-drilling for consistent hole depth and professional results
  • Slug ejector spring: Provides quick, easy slug removal for continuous operation
  • Maximum 8 ga cutting depth: Handles substantial material thickness for demanding applications

Technical Specifications

  • Country Of Origin: China
  • Cutting Edge: Tungsten Carbide Teeth
  • Hole Size: 7/8" (22.2 mm) for 1/2" conduit
  • Maximum Cutting Depth: 8 ga
  • Pilot Drill: Replacement 645-001 sold separately
  • Pilot Drill Size: 1/4" x 2-1/2" (6 mm x 64 mm)
  • Product Type: Carbide-Tipped Hole Cutter
  • Shank Size: 645-011 arbor sold separately (3/8" shank)

Installation & Operation

  1. Mount the unit in a suitable location with appropriate clearance and access for connections and service.
  2. Connect utility and load conductors following applicable guidelines and the manufacturer's instructions.
  3. Wire generator or power input according to the provided voltage/phase specifications and compatible capacity.
  4. Configure any available load management or control features as supported by the provided specifications.
  5. Test automatic transfer or operational functionality and verify proper performance before placing into service.
  6. Complete final inspection and follow ongoing maintenance practices appropriate to the product category.

Professional Applications

  • Electrical conduit installation and panel fabrication
  • HVAC ductwork and equipment mounting
  • Metal fabrication and sheet metal work
  • Plumbing and pipe fitting applications
  • Industrial maintenance and repair operations
  • Commercial construction and renovation projects
  • Automotive and marine metalworking

Why Choose Greenlee Quality?

Greenlee delivers professional-grade tools engineered for demanding applications with tungsten carbide construction and precision manufacturing. The quick-change design and burr-free cutting performance ensure reliable operation and professional results in metal fabrication and electrical installation applications.

Manufacturer Resources

Product Specs

Country Of Origin:
China
Cutting Edge:
Tungsten Carbide Teeth
Hole Size:
7/8" (22.2 mm) for 1/2" conduit
Maximum Cutting Depth:
8 ga
Pilot Drill:
Replacement 645-001 sold separately
Pilot Drill Size:
1/4" x 2-1/2" (6 mm x 64 mm)
Product Type:
Carbide-Tipped Hole Cutter
Shank Size:
645-011 arbor sold separately (3/8" shank)

Greenlee 645-7/8 – Frequently Asked Questions

How fast can I get the Greenlee 645-7/8 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 645-7/8 come with a warranty?
Absolutely. The Greenlee 645-7/8 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 645-7/8?
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 645-7/8 from ZenSupply?
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