Greenlee Replaceable Tip Auger...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$111.21
$80.89
Greenlee Replaceable Tip Auger Bit 7/8" x 8-5/8" High Carbon Alloy Steel

Greenlee Replaceable Tip Auger Bit 7/8" x 8-5/8" High Carbon Alloy Steel

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Model: 63RT-7/8
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$111.21
$80.89
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Greenlee Replaceable Tip Auger Bit 7/8" x 8-5/8" High Carbon Alloy Steel

Professional drilling performance with replaceable tip technology

The Greenlee Replaceable Tip Auger Bit delivers professional drilling performance with its high-quality carbon alloy steel construction and innovative replaceable tip design. This 7/8" diameter bit features an 8-5/8" overall length with hexagonal shank for secure tool connection, providing reliable wood drilling capabilities for professional applications.

Professional Features & Benefits

  • 7/8" Bit Diameter: Provides precise hole sizing for professional electrical and construction applications requiring consistent bore dimensions.
  • Replaceable Tip Design: Eliminates resharpening needs and extends tool life through quick-change cutting edge and feed screw replacement capability.
  • High Carbon Alloy Steel Construction: Delivers enhanced durability and strength for demanding drilling applications with tool steel cutting edge for superior performance.
  • Patented Tip Technology: Pulls through wood efficiently even after multiple holes without requiring pushing force to complete drilling operations.
  • Maximum Chip Removal Flute: Over-center flute design ensures efficient debris evacuation for cleaner drilling and reduced binding.
  • Hexagonal Shank: 7/16" hex shank provides secure chuck engagement and prevents slipping during high-torque drilling operations.

Technical Specifications

  • Bit Diameter: 7/8 IN
  • Overall Length: 8-5/8 IN
  • Product Material: Carbon, Alloy Steel, Tool Steel Cutting Edge
  • Product Type: Replaceable Tip
  • Product Weight: 0.700 LB (0.318 GM)
  • Replacement Part: PTR - 7/8 12561 Replacement Kit 7/8 IN
  • Shank Diameter: 7/16 IN
  • Shank Type: Hexagonal

Professional Applications

  • Electrical rough-in and wiring installations
  • Construction and remodeling projects
  • Professional contractor drilling operations
  • Maintenance and repair applications
  • Commercial building installations
  • Residential electrical work

Why Choose Greenlee Quality?

Greenlee's replaceable tip auger bit technology represents professional-grade tool engineering with high carbon alloy steel construction and innovative tip design. The replaceable cutting edge system eliminates resharpening requirements while maintaining consistent drilling performance, delivering reliable durability for demanding professional applications.

Manufacturer Resources

Product Specs

Bit Diameter:
7/8 IN
Overall Length:
8-5/8 IN
Product Material:
Carbon, Alloy Steel, Tool Steel Cutting Edge
Product Type:
Replaceable Tip
Product Weight:
0.700 LB (0.318 GM)
Replacement Part:
PTR - 7/8 12561 Replacement Kit 7/8 IN
Shank Diameter:
7/16 IN
Shank Type:
Hexagonal
Department:
Electrical
Product Subgroup:
Hole Saws & Bits

Greenlee 63RT-7/8 – Frequently Asked Questions

1) What size hole does the Greenlee 63RT-7/8 auger bit drill, and how deep can it go?
The Greenlee 63RT auger bit cuts a 7/8 inch hole and measures 8-5/8 inches overall. That overall length includes the shank and the feed screw, so usable drilling depth is less than 8-5/8 inches. For boring through a doubled 2x stud wall or a stack of plates, the 8-5/8 inch length is the working figure to check against your plate thickness before you commit.
2) When the tip on a Greenlee replaceable tip auger bit dulls, do I buy a whole new bit?
No. That is the point of the replaceable tip design. The cutting edge and feed screw come off and the replacement for the 7/8 inch size is the PTR-7/8 12561 Replacement Kit. You keep the body and the flute and swap only the wearing parts, so there is no resharpening and no full bit replacement. For a crew boring hundreds of holes on a rough-in, stocking a few kits alongside one bit body is the cheaper way to run it.
3) Is a 7/8 inch auger bit the right size for running NM cable through studs?
A 7/8 inch bore is the common electrical rough-in size, and this Greenlee bit is built for that work. It gives room to pull multiple 12/2 or 14/2 NM runs through a stud bay without binding the jacket. Step up to a larger diameter only if you are pulling conduit or a heavy cable bundle. On a 2x4 stud, a 7/8 inch hole also stays within what is normally allowed for a bored notch in a non bearing stud, though your inspector governs the final call.
4) Is the Greenlee 63RT auger bit for wood only, or can it cut nails?
Wood boring. The 63RT-7/8 is carbon and alloy steel with a tool steel cutting edge, which is a wood cutting geometry with a feed screw that pulls into the material. It is not a nail eating bit and it is not for metal or masonry. If you are boring an older wall where you expect to hit nails or metal plates, use a nail cutting auger or a bi-metal hole saw instead, and keep this one for clean framing.
5) What is the Greenlee part number for the 7/8 inch replaceable tip auger bit?
63RT-7/8 is the Greenlee model for the 7/8 inch replaceable tip auger, 8-5/8 inches overall on a 7/16 inch hex shank. The matching tip and feed screw kit is PTR-7/8 12561. The 63RT prefix is the replaceable tip series, so the diameter suffix is what changes across the family.
6) Why does an auger bit bind and stall halfway through a stud, and does the Greenlee 63RT fix that?
Binding is usually chip packing: the flute fills, the bit stops evacuating, and the drill torques out of your hands. The 63RT uses an over-center flute for chip removal and a feed screw that pulls the bit through without you leaning on it. On a right angle drill, that combination is what keeps the hole going after the first several bores instead of stalling. If the pull weakens over time, the feed screw is a wear part and comes in the PTR-7/8 12561 kit.
How fast can I get the Greenlee 63RT-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 63RT-7/8 come with a warranty?
Absolutely. The Greenlee 63RT-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 63RT-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 63RT-7/8 from ZenSupply?
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