5" Extension for Carbide Tipped Hole Cutters | For 3/8" shank cutters
SKU: CHA-CT-EXT-3/8
$62.83
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Materials & Applications
Compatibility
Materials & Applications
Recommended use cases for this product across common industrial materials and jobsite applications.
Steel, stainless steel, cast iron, aluminum, copper
Plate, structural beam, sheet-metal, pipe, tube
Hole cutting up to 1″ depth (larger by SKU)
Use with power drills, drill presses, mag drill arbors
Electricians, HVAC contractors, sheet-metal trades, field maintenance
Require coolant/lubrication for best results, thick metal drilling environment
Product details
Technical Description
Essential product information, specifications, and recommended use before ordering.
Champion CT7 Carbide Tipped Hole Cutters for Steel & Stainless — 1" Depth of Cut
The Champion CT7 carbide tipped hole cutter is built for fast, accurate and burr-free hole cutting in steel, stainless steel, cast iron, iron, aluminum, plastics and other tough materials up to 1" thick. Designed as a professional alternative to standard bi-metal hole saws, CT7 cutters deliver cleaner holes, longer cutting life and better productivity in demanding metalworking applications.
With ultra-sharp tungsten carbide teeth, a spring-loaded pilot drill and a built-in safety collar stop, the CT7 series is ideal for contractors, electricians, HVAC installers, plumbers, maintenance teams, fabrication shops and field service technicians who need reliable large-diameter holes using a handheld power drill or drill press.
Why Choose CT7 Carbide Tipped Hole Cutters?
- Cuts materials up to 1" thick for heavy-duty metal hole cutting.
- Tungsten carbide teeth provide excellent wear resistance and longer tool life.
- Outperforms bi-metal hole saws in steel, stainless steel and tough applications.
- Spring-loaded pilot drill helps center the hole and quickly eject the metal slug.
- Safety collar stop helps prevent over-penetration for safer, more controlled drilling.
- Flatted shank is designed for use in handheld power drills and drill presses.
- Portable jobsite solution for electricians, HVAC, plumbing, fabrication, construction and MRO work.
Carbide Tipped Hole Cutter vs Bi-Metal Hole Saw
For metal cutting, the Champion CT7 carbide tipped hole cutter is the stronger choice when speed, accuracy and tool life matter. Compared to traditional bi-metal hole saws, carbide tipped cutters handle heat better, stay sharp longer and reduce chatter, especially when drilling steel, stainless steel and thicker material.
The result is a cleaner, smoother, more consistent hole with fewer replacements and less downtime. For professionals who cut metal regularly, the CT7 is not just a hole saw replacement. It is a productivity upgrade. Humanity survives another day, thanks to better teeth geometry.
Best Uses & Applications
- Electrical conduit installation and control panel work
- HVAC ducting, sheet metal and mechanical openings
- Plumbing and pipe clearance holes
- Structural steel fabrication and industrial repairs
- Truck, trailer, automotive and equipment maintenance
- MRO, construction, agriculture and field service drilling
- Large-diameter holes in metal plate, stainless panels and tough materials
Recommended Materials
- Steel
- Stainless steel
- Cast iron
- Iron
- Aluminum
- Copper
- Fiberglass
- Plastics
- Other tough metals and alloys
Technical Specifications
| Tool Type | Carbide Tipped Hole Cutter / Metal Hole Saw Alternative |
|---|---|
| Series | Champion CT7 |
| Cutting Teeth | Ultra-Sharp Tungsten Carbide Tipped Teeth |
| Depth of Cut | Up to 1" / 25.4 mm |
| Shank Type | Flatted shank for handheld power drills and drill presses |
| Pilot System | Spring-loaded pilot drill for accurate centering and slug ejection |
| Safety Feature | Safety collar stop helps prevent over-penetration |
| Recommended Use | Steel, stainless steel, cast iron, aluminum, sheet metal, conduit, fabrication and maintenance drilling |
Operating Tips for Best Performance
- Use in rotary mode only. Do not use impact mode.
- Use proper RPM based on cutter diameter and material.
- Apply cutting fluid or wax to reduce heat and extend tool life.
- Ease feed pressure as the pilot drill is about to break through the material.
- Secure the workpiece properly before drilling.
Frequently Asked Questions
What is the Champion CT7 used for?
The Champion CT7 is used to cut fast, clean holes in steel, stainless steel, cast iron, aluminum, sheet metal, plastics and other tough materials up to 1" thick.
Is the Champion CT7 better than a bi-metal hole saw?
Yes, for regular metal cutting applications. The CT7 carbide tipped hole cutter is designed to outperform bi-metal hole saws by cutting faster, lasting longer and producing smoother, cleaner holes in steel and stainless steel.
Can I use CT7 hole cutters in a handheld drill?
Yes. Champion CT7 hole cutters have a flatted shank designed for use in handheld power drills and drill presses.
Can I use the Champion CT7 in impact mode?
No. CT7 cutters must be used in rotary mode only. Impact mode can damage the cutter and carbide teeth.
What materials can Champion CT7 cutters drill through?
CT7 cutters can drill through steel, stainless steel, iron, cast iron, aluminum, copper, fiberglass, plastics and other tough materials.
How deep can the Champion CT7 cut?
The Champion CT7 carbide tipped hole cutter has a maximum depth of cut of 1" or approximately 25.4 mm.
Does the CT7 eject the metal slug automatically?
Yes. The spring-loaded pilot drill helps eject the metal plug quickly after the cut, improving productivity and reducing downtime.
Should I use cutting fluid with the CT7?
Yes. Cutting fluid or cutting wax is recommended, especially when drilling steel, stainless steel or tough alloys. Lubrication reduces heat and helps extend cutter life.
Always wear proper PPE. Secure the workpiece before drilling. Use rotary mode only and follow Champion operating guidelines for safe operation.
Most Interesting Product Feature
Product highlight
Most Interesting Product Feature
- Flat-shank design (for power drills & drill presses) and spring-loaded pilot for efficient slug ejection.
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Parts & Accessories
Parts Available for This Product
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Champion CT7 1" Depth Carbide Tipped Hole Cutters for Steel & Stainless | Pilot pin
SKU: CHA-CT7-PILOT
$11.26
Champion CT7 1" Depth Carbide Tipped Hole Cutters for Steel & Stainless | Cobalt pilot pin
SKU: CHA-CT7CO-PILOT
$12.83
Champion CT7 1" Depth Carbide Tipped Hole Cutters for Steel & Stainless | TCT pilot pin
SKU: CHA-CT7-PILOT-TCT
$13.37
5" Extension for Carbide Tipped Hole Cutters | For 3/8" shank cutters
SKU: CHA-CT-EXT-3/8
$62.83
5" Extension for Carbide Tipped Hole Cutters | For 1/2" shank cutters
SKU: CHA-CT-EXT-1/2
$69.82
Available sets
Sets Available for This Product
Save time on every order with complete compatible kits ready for the job.
Compatible kits
Simplified ordering
Jobsite ready
Set
5 Piece Maintenance 1" Depth Carbide Tipped Hole Cutter Set
Contains: 5/8", 3/4", 7/8", 1", 1-1/8"
CHA-CT7P-SET-4
Set
5 Piece Bolt Clearance 1" Depth Carbide Tipped Hole Cutter Set
Contains: 9/16", 11/16", 13/16", 15/16", 1-1/16"
CHA-CT7P-SET-5
Set
5 Piece Electrical 1" Depth Carbide Tipped Hole Cutter Set
Contains: 7/8", 1-1/8", 1-3/8", 1-3/4", 2",
CHA-CT7P-SET-6
Set
6 Piece Plumbing 1" Depth Carbide Tipped Hole Cutter Set
Contains: 3/4", 7/8", 1-1/8", 1-1/2", 1-3/4", 2-1/4"
CHA-CT7P-PLUMBER-1
Set
10 Piece Electrical 1" Depth Carbide Tipped Hole Cutter Set
Contains: 7/8", 1-1/8", 1-3/8", 1-3/4", 2", 2-1/2", 3", 3-5/8", 4-1/8", 4-1/2"
CHA-CT7P-ELECTRICAL-1
Set
12 Piece Mechanical 1" Depth Carbide Tipped Hole Cutter Set
5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8", 1-1/2", 1-3/4", 2", 2-1/2", 3"
CHA-CT7P-MECHANICAL-1
Set
12 Piece Plumbing 1" Depth Carbide Tipped Hole Cutter Set
Contains: 3/4", 7/8", 1-1/8", 1-1/2", 1-3/4", 2-1/4", 2-9/16", 3", 3-1/2", 4", 4-1/4", 4-1/2"
CHA-CT7P-PLUMBER-2
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