Greenlee 6251 Carbide-Tipped H...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$5.50
Greenlee 6251 Carbide-Tipped Hole Cutter, Tungsten Carbide Teeth

Greenlee 6251 Carbide-Tipped Hole Cutter, Tungsten Carbide Teeth

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Model: GREE-6251

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

$5.50
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Greenlee 6251 Carbide-Tipped Hole Cutter, Tungsten Carbide Teeth

The Greenlee 6251 Carbide-Tipped Hole Cutter is a heavy-duty metal cutting tool built with strong, durable one-piece construction for extended service life on the jobsite. This family of hole cutters is available in a range of sizes from 3/4" through 3", including 7/8", 1", 1-3/8", 1-3/4", and 3", so crews can match the exact hole diameter each job calls for while relying on the same proven cutting performance across the line. Every size shares a 1/2" shank for compatibility with standard drills and drivers, and a maximum cutting depth rated for material up to 8 ga. Each cutter features a Split-Point Cobalt Steel Pilot Drill with a step design that delivers fast, accurate metal cutting with less applied force, along with Tungsten Carbide Teeth engineered for fast, easy cutting and maximum life when working in stainless steel — no cutting oil required. Well suited for demanding electrical, mechanical, and metalworking applications, the 6251 series is designed to hold up under repeated use across a variety of job requirements.

Key Features

  • Size Range: Available in 3/4", 7/8", 1", 1-3/8", 1-3/4", and 3" diameters to cover a wide range of hole-cutting needs.
  • Shank Size: 1/2" shank across the size range for compatibility with standard drills and drivers.
  • Maximum Cutting Depth: Rated for material up to 8 ga, supporting a range of metal thicknesses.
  • Durable Construction: Strong, one-piece build designed for even longer tool life under repeated use.
  • Cutting Edge: Tungsten Carbide Teeth with an optimized design for fast, easy cutting and maximum life in stainless steel, with no oil required.
  • Pilot Drill: Split-Point Cobalt Steel Pilot Drill with a step design for fast, accurate metal cutting with less force.
  • Burr-Free Holes: Produces round, burr-free holes for clean, professional results.
  • Flange Stop: Built-in flange stop eliminates over-drilling for more consistent, controlled cuts.
  • Slug Ejector Spring: Integrated spring allows for quick, easy slug removal between cuts.

Technical Specifications

  • Shank Size: 1/2"
  • Maximum Cutting Depth: 8 ga
  • Available Sizes: 3/4", 7/8", 1", 1-3/8", 1-3/4", 3"
  • Country of Origin: China
  • Type: Carbide-Tipped Hole Cutter
  • Cutting Edge: Tungsten Carbide Teeth

Typical Applications

  • Stainless Steel Cutting
  • Mild Steel and Aluminum Fabrication
  • Copper and Brass Panel Work
  • Fiberglass and Plastic Enclosure Cutting
  • Electrical Panel and Enclosure Installation

Why Greenlee?

Greenlee engineers the 6251 Carbide-Tipped Hole Cutter series with a strong, one-piece construction, a Split-Point Cobalt Steel Pilot Drill, and Tungsten Carbide Teeth to deliver reliable, burr-free cutting performance across stainless steel, mild steel, aluminum, copper, brass, fiberglass, and plastics. Across the full 3/4" to 3" size range, the flange stop and slug ejector spring add practical, time-saving design details that professionals depend on for accurate, efficient metal cutting on demanding jobsite applications.

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Manufacturer Resources

Product Specs

list_batch:
GREE-20260923
Product Type:
Carbide Hole Cutter
Department:
Electrical
Product Subgroup:
Hole Saws & Bits
Product Material:
Tungsten Carbide
Product Width:
3.8 inches
Product Details:
Carbide-Tipped Hole Cutter
Connection Type:
1/2" Shank
Product Group:
Power Tools & Accessories

Greenlee GREE-6251 – Frequently Asked Questions

1) Will the Greenlee 6251 hole cutter fit a standard cordless drill chuck?
Every size in the 6251 carbide-tipped hole cutter line uses a 1/2 inch shank, so it chucks into standard drills and drivers that accept a 1/2 inch shank. There is no separate arbor or pilot to buy, the Split-Point Cobalt Steel Pilot Drill is part of the cutter.
2) How thick a panel can a Greenlee 6251 hole cutter go through?
Maximum cutting depth is rated for material up to 8 ga. That covers typical sheet metal electrical enclosures, panel sides, and struts. For anything heavier than 8 ga sheet, this is not the right tool.
3) Can I cut stainless steel with the Greenlee 6251 without cutting oil?
Yes. The tungsten carbide teeth on the 6251 are designed for cutting stainless steel with no cutting oil required. The same cutter also handles mild steel, aluminum, copper, brass, fiberglass, and plastic enclosures.
4) I need to cut a single-gang box opening in sheet metal - will a Greenlee 6251 do it?
No. The Greenlee 6251 is a round hole cutter offered in 3/4-inch through 3-inch diameters, so it produces round holes only. For a single-gang rectangular opening, use the Rack-A-Tiers 42700 Single Gang Q-Bit Hole Cutter, which cuts a 2-3/8-inch x 3-3/4-inch single-gang shape. Keep the 6251 for round conduit and fitting holes.
5) Is there an equivalent to the Greenlee 6251 7/8-inch carbide hole cutter from another brand?
Yes. The Ideal Industries 36-801 is a 7/8-inch carbide tipped hole cutter in the DEADEYE series, so it cuts the same 7/8-inch hole diameter as the Greenlee 6251 in that size. The Greenlee 6251 family uses a 1/2-inch shank and carries tungsten carbide teeth with a split-point cobalt steel pilot drill, flange stop, and slug ejector spring; if those built-in features matter to how your crew works, stay with the 6251. If you only need the 7/8-inch hole, the 36-801 covers it.
6) What hole sizes does the Greenlee 6251 carbide hole cutter come in?
The 6251 runs 3/4 inch through 3 inch as a trade size range. Individual diameters offered are 3/4, 7/8, 1, 1-1/8, 1-3/8, 1-3/4, and 3 inch, so you can match common conduit and connector knockouts without stepping a hole twice.
7) Will a carbide hole cutter leave a clean enough hole for a liquidtight connector?
The 6251 produces round, burr-free holes, and a built-in flange stop keeps you from over-drilling past the panel face. A slug ejector spring pops the cut disc out so you are not prying it from the cutter between holes. That combination is why it gets used for enclosure and panel work where the hole has to seal against a connector gasket.
8) Should I use a carbide hole cutter or a knockout punch for electrical enclosures?
A carbide-tipped cutter like the 6251 drills the hole with a standard drill, which is faster to set up and works where you cannot get a punch and die on both sides of the panel. A knockout punch is the better call on heavier gauge boxes or where you want a cold-formed hole with no chips inside the enclosure. The 6251 is limited to material up to 8 ga.
9) Do I need a separate pilot bit or arbor with the Greenlee 6251?
No. Each 6251 cutter is one-piece construction with its own Split-Point Cobalt Steel Pilot Drill, stepped so it starts fast and tracks accurately with less applied force. Nothing to assemble, and no arbor to match to the cutter diameter.
10) What looks like a substitute for the Greenlee 6251 but is not?
The Rack-A-Tiers 42700 Q-Bit is also sold as a hole cutter for electrical work, but it is a single gang cutter producing a 2-3/8-inch x 3-3/4-inch opening rather than a round hole. The Greenlee 6251 is a round carbide-tipped hole cutter in 3/4-inch, 7/8-inch, 1-3/8-inch, 1-3/4-inch, and 3-inch sizes on a 1/2-inch shank. They are not interchangeable - the hole shapes differ.
11) I already run Ideal DEADEYE cutters - can I add Greenlee 6251 sizes alongside them?
Yes. The Ideal 36-801 DEADEYE covers 7/8-inch, and the Greenlee 6251 carbide-tipped line runs 3/4-inch through 3-inch with a 1/2-inch shank, so you can fill in the diameters the DEADEYE kit does not cover without changing drills. Both are carbide tipped cutters for metal work.
How fast can I get the Greenlee GREE-6251 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 GREE-6251 come with a warranty?
Absolutely. The Greenlee GREE-6251 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 GREE-6251?
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 GREE-6251 from ZenSupply?
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