01 — Essential Specifications
Choose with confidence
Essential specifications
The facts that matter most when choosing the right product in this family.
02 -- Materials, Applications & Machines
Working compatibility
Materials, applications & machines
Quickly confirm what the tool can cut, the work it is designed to perform, and the equipment it is intended to run on.
Compatible materials
Recommended workpiece materials
- Stainless steel
- Cast iron
- Steel
Recommended applications
Typical jobs and operations
- Steel, Stainless steel, Cast iron, Structural steel, Tough and exotic alloys Magnetic drill press operations Heavy structural and bridge fabrication Industrial construction Maintenance and repair Deep and stacked material holemaking
Compatible machines
Equipment and operating methods
- Magnetic drill press
03 -- Complete Technical Specifications
Technical data
Complete technical specifications
Open only the groups you need to confirm construction, dimensions, and operating requirements.
Construction & identification
Dimensions & fit
Cutting geometry
04 -- Why Choose this series
Series advantage
Why choose the CT300 series
3″ Deep Triple-Edge Carbide Cutting Capability. The CT300 combines extreme cutting depth with triple-edge carbide teeth, enabling fast, stable drilling through thick and stacked steel where standard annular cutters simply cannot operate.
- 3″ Deep Triple-Edge Carbide Cutting Capability. The CT300 combines extreme cutting depth with triple-edge carbide teeth, enabling fast, stable drilling through thick and stacked steel where standard annular cutters simply cannot operate.
- Carbide-tipped
05 -- Compatibility & What's Included
Compatibility & contents
Confirm the fit before ordering
The systems, models, and components below come directly from the product’s normalized fit data.
Fit details
06 -- Use Notes & Technical Description
Before you use it
Use notes & technical description
Important fit, operating, and care guidance to review before putting the tool to work.
View the complete technical description
Champion CT300-3-1/2 3-1/2" 3" Depth Carbide-Tipped Annular Cutter — Deep-Hole Cutting for Structural Steel
The CT300-3-1/2 is an exact 3-1/2" carbide-tipped annular cutter engineered for holes up to 3 inches deep in thick steel and other demanding materials. Its extended cutting depth helps reach heavy plate, structural members, and deep drilling locations where standard annular cutters cannot reach.
Ultra-hard tungsten carbide teeth and Champion's triple-edge cutting system deliver fast, clean, burr-reduced holes with controlled cutting pressure. The annular geometry removes only a thin ring of material, while the 1-1/4" shank is designed for compatible magnetic drill presses and annular cutter arbors.
Technical Specifications
| Manufacturer part number | CT300-3-1/2 |
|---|---|
| Exact cutter diameter | 3-1/2" |
| Annular cutter type | Carbide-tipped annular cutter |
| Depth of cut | 3" |
| Shank size | 1-1/4" |
| Cutting system | Triple-edge carbide teeth |
| Compatible pilot pin | CT300-PIN-1-1/4, sold separately |
Applications
Use this Champion 3-1/2" cutter for deep holes in cast iron, steel, stainless steel, structural steel, heavy plate, and other tough or exotic alloys. It is designed for magnetic drill presses, bridge and industrial fabrication, construction, maintenance, and heavy steelwork requiring up to 3" of cutting depth.
Secure the workpiece and use the correct arbor, pilot pin, speed, feed, and carbide-rated cutting lubricant. Use appropriate PPE and follow the drill press and cutter manufacturer's instructions.
How ordering works
A clear process from order to delivery
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Picking and packing
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Tracking provided
As soon as the carrier label is created, the tracking information is sent to you.
Delivery to your location
Your order travels to the selected address with clear visibility into its progress.
Business purchasing
Built for the way businesses buy
For distributors, wholesalers, machine shops and contractors: apply for Net 30 terms, email a PDF purchase order or request tailored business pricing.
Credit decisions are usually completed in 2–3 business days. No minimum order is required to apply.




