Greenlee 7/8" Professional Spa...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$57.96
$7.96
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Greenlee 7/8" Professional Spade Bit with Wire Pulling Hole

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Model: 33A-7/8

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

$57.96
$7.96
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Greenlee 7/8" Professional Spade Bit with Wire Pulling Hole

Forged and Heat Treated for Professional Drilling Applications

The Greenlee 7/8" Professional Spade Bit delivers reliable performance for boring through hardwood, softwood, plywood, and drywall. Featuring forged and heat-treated construction for long life, this professional-grade bit includes a convenient wire pulling hole in the top center for electrical installations. Compatible with 1/4" or larger power drills, this hexagonal shank spade bit provides the durability and precision professionals demand.

Professional Features & Benefits

  • 7/8" Bit Diameter: Ideal size for standard electrical and plumbing applications requiring precise bore holes
  • Forged and Heat Treated Construction: Ensures extended tool life and consistent performance under demanding conditions
  • Wire Pulling Hole: Center hole design facilitates easy wire routing in electrical installations
  • Hexagonal Shank: Provides secure grip in drill chucks and prevents slipping during operation
  • 1/4" Shank Compatibility: Works with standard power drills 1/4" or larger for versatile application
  • Multi-Material Capability: Effectively bores hardwood, softwood, plywood, and drywall materials
  • 6-1/4" Overall Length: Optimal length for standard drilling depth requirements

Technical Specifications

  • Bit Diameter: 7/8 IN (22.200 MM)
  • Overall Length: 6-1/4 IN (158.800 MM)
  • Product Weight: 0.120 LB (54.400 GM)
  • Shank Size: 1/4 IN (6.400 MM)
  • Shank Type: Hexagonal

Installation & Operation

  1. Mount the spade bit securely in a 1/4" or larger power drill chuck, ensuring the hexagonal shank is properly seated.
  2. Mark the drilling location and ensure the work surface is properly secured and supported.
  3. Position the drill perpendicular to the work surface and begin drilling at low speed to establish the hole.
  4. Increase speed as needed while maintaining steady pressure and allowing the bit to cut efficiently.
  5. For wire pulling applications, thread wire through the center hole before or after drilling as required.
  6. Complete the drilling operation and remove debris, ensuring clean hole edges for professional results.

Professional Applications

  • Electrical installations requiring wire routing holes
  • Plumbing rough-in work
  • HVAC ductwork preparation
  • General construction and remodeling projects
  • Carpentry and woodworking applications
  • Maintenance and repair operations
  • Professional contractor and tradesman use

Why Choose Greenlee Quality?

Greenlee delivers professional-grade tools built for demanding applications. This forged and heat-treated spade bit represents the quality and durability that professionals rely on for consistent performance. The thoughtful design features, including the wire pulling hole and hexagonal shank, demonstrate Greenlee's commitment to practical solutions that enhance productivity and job site efficiency.

Manufacturer Resources

Product Specs

Bit Diameter:
7/8 IN (22.200 MM)
Overall Length:
6-1/4 IN (158.800 MM)
Product Weight:
0.120 LB (54.400 GM)
Shank Size:
1/4 IN (6.400 MM)
Shank Type:
Hexagonal

Greenlee 33A-7/8 – Frequently Asked Questions

How fast can I get the Greenlee 33A-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 33A-7/8 come with a warranty?
Absolutely. The Greenlee 33A-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 33A-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 33A-7/8 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.