Greenlee Self-Feeding Spade Bi...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$8.30
Greenlee Self-Feeding Spade Bit with Quick Change Hex Shank

Greenlee Self-Feeding Spade Bit with Quick Change Hex Shank

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Model: 34A-3/8

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

$8.30
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Greenlee 3/8" Self-Feeding Spade Bit with Quick Change Hex Shank

Professional drilling solution for hardwood, softwood, plywood and drywall applications

The Greenlee 3/8" Self-Feeding Spade Bit delivers professional performance with its innovative self-feeding design that requires less effort and reduces vibration. Featuring a 1/4" quick change hex shank and forged heat-treated construction, this bit provides reliable drilling through hardwood, softwood, plywood and drywall materials. The unique tapered design allows for existing hole enlargement, while the center wire-pulling hole adds versatility for electrical installations.

Professional Features & Benefits

  • Self-Feeding Design: Innovative construction requires less drilling effort and significantly reduces vibration for improved user comfort and control.
  • 3/8" Bit Diameter: Optimal size for standard electrical and construction applications with precise 9.500 MM diameter specification.
  • Quick Change Hex Shank: 1/4" hexagonal shank enables fast bit changes and secure grip in compatible power drills.
  • Forged Heat-Treated Construction: Professional-grade manufacturing process ensures long service life and consistent performance under demanding conditions.
  • Unique Tapered Design: Allows for enlargement of existing holes, providing versatility for retrofit and modification work.
  • Wire-Pulling Capability: Center hole design facilitates wire pulling operations, making it ideal for electrical installations.
  • Multi-Material Compatibility: Effectively bores through hardwood, softwood, plywood and drywall for versatile application use.

Technical Specifications

  • Bit Diameter: 3/8 IN (9.500 MM)
  • Msrp: 5.33
  • Overall Length: 6-1/4 IN (158.800 MM)
  • Product Type: Self Feeding
  • Product Weight: 0.090 LB (40.800 GM)
  • Shank Size: 1/4 IN (6.400 MM)
  • Shank Type: Hexagonal

Professional Applications

  • Electrical installations requiring precise hole drilling
  • Construction and carpentry projects
  • Retrofit and renovation work
  • Professional contractor operations
  • Maintenance and repair services
  • Wire pulling and cable routing
  • Multi-material drilling applications

Why Choose Greenlee Quality?

Greenlee delivers professional-grade tools engineered for reliability and durability. The forged and heat-treated construction ensures long service life, while the innovative self-feeding design reduces user fatigue and improves productivity. Trust Greenlee's commitment to quality craftsmanship for your professional drilling applications.

Manufacturer Resources

Spec Sheet

Product Specs

Product Type:
Spade Bit
Department:
Electrical
Shank Type:
Hexagonal
Shank Size:
1/4 IN (6.400 MM)
Overall Length:
6-1/4 IN (158.800 MM)
Product Subgroup:
Hole Saws & Bits
Product Group:
Power Tools & Accessories

Greenlee 34A-3/8 – Frequently Asked Questions

1) Will the Greenlee self-feeding spade bit fit an impact driver?
The shank is a 1/4 inch hexagonal quick-change shank, so it drops straight into an impact driver chuck or a quick-change bit holder, as well as a standard 3-jaw drill chuck. That hex shank is what keeps it from spinning in the chuck when the self-feeding tip pulls into hardwood.
2) What is the hole in the middle of the Greenlee spade bit for?
That center hole is for wire pulling. After boring the hole you can thread a pull wire or fish line through the bit, back the bit out, and bring the wire with it, which saves a second trip with a fish tape on electrical rough-in.
3) Can this spade bit enlarge a hole that is already drilled?
Yes. The tapered design lets it enlarge an existing hole rather than skating off the edge, which is the usual failure with a flat spade bit that has no pilot to bite. Useful on retrofit work where an existing bore has to be opened up for a bigger cable.
4) What materials will the Greenlee 34A spade bit cut?
Hardwood, softwood, plywood and drywall. It is a wood-boring bit with forged, heat-treated construction, so keep it out of metal studs, nails and masonry; those call for a bi-metal hole saw or a carbide bit instead.
5) Is a self-feeding spade bit better than a standard spade bit for overhead drilling?
For overhead and awkward positions, the self-feeding tip helps: it threads itself into the wood so you push less and the bit chatters less. A flat-tip spade bit needs steady axial force, which is hard to hold over your head. Where you need a very clean, splinter-free hole or a deep bore, an auger or a hole saw is still the better tool.
How fast can I get the Greenlee 34A-3/8 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 34A-3/8 come with a warranty?
Absolutely. The Greenlee 34A-3/8 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 34A-3/8?
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 34A-3/8 from ZenSupply?
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