Greenlee 50315404 33L Extended...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$72.10
$17.23
Greenlee 50315404 33L Extended Spade Bit, 3/4 IN Diameter, Hex Shank

Greenlee 50315404 33L Extended Spade Bit, 3/4 IN Diameter, Hex Shank

(No reviews yet) Write a Review

Model: 50315404

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

$72.10
$17.23
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Greenlee 50315404 33L Extended Spade Bit, 3/4 IN Diameter, Hex Shank

The Greenlee 50315404 is a 33L Series spade bit engineered for electricians and installers who need extended reach when boring through framing members and building materials. Measuring an overall length of 16 IN (406.400 MM) with a 3/4 IN (19.100 MM) bit diameter, this spade bit is built to bore clean holes in hardwood, softwood, plywood, and drywall. It features a 1/4 IN (6.400 MM) hexagonal shank designed for secure, slip-resistant engagement in standard drill chucks, making it a practical choice for wire and cable-pulling applications where extended-length bits are required to reach through joists, studs, and other structural members. Whether roughing in new construction wiring or working through a remodel, this bit's combination of length and diameter helps installers complete boring tasks efficiently and in fewer passes.

Key Features

  • Overall Length: 16.000 IN (406.400 MM) for reaching through deep or multiple framing members in a single pass.
  • Bit Diameter: 3/4 IN (19.100 MM) for boring holes sized for common conduit, cable, and wiring runs.
  • Shank Size: 1/4 IN (6.400 MM) Hexagonal shank for a secure, non-slip fit in standard drill chucks.
  • Application: Designed to bore Hardwood, Softwood, Plywood, and Drywall for versatile use across job site materials.
  • Product Dimensions: Product Length 17.500 IN, Product Width 1.700 IN, Product Height 0.100 IN for reference when selecting storage or drill setups.
  • Volume: 2.975 CI.
  • Shank Type: Hexagonal shank type for reliable drill engagement without slippage during high-torque boring.

Technical Specifications

  • Application: For Bore Hardwood, Softwood, Plywood And Drywall
  • Bit Diameter: 3/4 IN (19.100 MM)
  • Country Of Origin: CN
  • Overall Length: 16.000 IN (406.400 MM)
  • Product Height: 0.100 IN
  • Product Length: 17.500 IN
  • Product Width: 1.700 IN
  • Shank Size: 1/4 IN (6.400 MM)
  • Shank Type: Hexagonal
  • Volume: 2.975 CI

Typical Applications

  • Boring Holes in Hardwood, Softwood, and Plywood Framing
  • Drywall Penetrations for Electrical Rough-In
  • Wire and Cable Pulling Through Studs and Joists
  • Commercial and Residential Electrical Installations
  • New Construction and Remodel Wiring Projects

Why Greenlee?

Greenlee spade bits like the 50315404 are built with a 1/4 IN hexagonal shank for reliable drill engagement and an extended 16 IN length to help electricians bore through hardwood, softwood, plywood, and drywall in fewer passes. This combination of length and diameter supports efficient rough-in work where reaching through multiple framing members is required, helping installers complete wiring runs with consistent, code-compliant results. With a 3/4 IN bit diameter suited to common conduit and cable runs, the 50315404 is a dependable choice for professionals who need to bore precise holes across a range of job site materials.

Manufacturer Resources

Spec Sheet

Product Specs

Bit Diameter:
3/4 IN (19.100 MM)
Overall Length:
16.000 IN (406.400 MM)
Product Height:
0.100 IN
Product Length:
17.500 IN
Product Width:
1.700 IN
Shank Size:
1/4 IN (6.400 MM)
Shank Type:
Hexagonal
Volume:
2.975 CI
Product Type:
Spade Bit
Department:
Electrical
Product Subgroup:
Hole Saws & Bits
Product Group:
Power Tools & Accessories
Application:
For Bore Hardwood, Softwood, Plywood And Drywall

Greenlee 50315404 – Frequently Asked Questions

1) Does the Greenlee 50315404 spade bit fit an impact driver?
It has a 1/4 inch hex shank, which is the standard quick-change size for impact drivers, and it also chucks up in a keyed or keyless drill chuck without slipping under torque. If your tool takes 1/4 inch hex bits, this drops straight in.
2) Can I use this Greenlee spade bit in hardwood, or is it only for softwood framing?
It is rated to bore hardwood, softwood, plywood and drywall. So oak blocking, LVL-face plywood, dimensional fir studs and board penetrations are all in scope. It is a wood and wallboard bit, not a masonry or metal bit, so do not take it into concrete, block or steel studs.
3) Do I need a bit extension to drill through a 2x6 wall plate stack with this?
No extension needed. At 16 inches of bit length, the 50315404 already gives you the reach that a short spade bit plus an extension shaft would provide, and with no coupling to wobble or loosen mid-cut. Keep in mind the bit ships at 17.5 inches overall packaged length, so plan tool bag or case storage accordingly.
4) Is the Greenlee 33L extended spade bit a single bit or a set?
The 50315404 is one bit, ordered as a single 3/4 inch diameter 33L extended spade bit under manufacturer part number 50315404. If you need a range of diameters for rough-in, you order each size separately.
How fast can I get the Greenlee 50315404 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 50315404 come with a warranty?
Absolutely. The Greenlee 50315404 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 50315404?
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 50315404 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.
!