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
- Tough alloys
- Steel
Recommended applications
Typical jobs and operations
- Stainless Steel Titanium Tough Alloys
- Holemaking
Compatible machines
Equipment and operating methods
- Portable drill
- 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 712CO series
Premium cobalt steel provides high red hardness for heat resistance and long tool life
- Premium cobalt steel provides high red hardness for heat resistance and long tool life
- Cobalt high-speed steel
- 118 Degree Split Point
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.
What’s included
Components supplied with this product
- Single cobalt Silver & Deming drill bit
- 1/2-inch reduced shank
- 118° split point
- gold oxide finish
- Made in USA
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 712CO-1-1/8 Cobalt Heavy-Duty Silver & Deming Drill Bit, 1-1/8" – 1/2" Shank, 118° Split Point
712CO-1-1/8 is a Champion cobalt Silver & Deming drill bit in 1-1/8". Premium cobalt steel provides high red hardness for extreme heat resistance and long tool life when drilling stainless steel, titanium and other tough alloys.
Key Benefits
- Premium cobalt steel maintains cutting performance in high-heat drilling applications.
- 118° self-centering split point helps prevent the drill from walking on the workpiece.
- 1/2-inch reduced shank allows large-diameter drilling with compatible 1/2-inch drill chucks.
- Silver & Deming heavy-duty design provides a rigid large-diameter drilling format with a 3-1/8-inch flute and 6-inch overall length.
- Made in USA by Champion Cutting Tool.
Applications
- Drilling stainless steel, titanium and other tough alloys
- Large-diameter holemaking in fabrication and machine-shop work
- Portable power drills and drill presses
- Heavy-duty drilling for the 1-1/8" diameter
Technical Specifications
| Manufacturer part number | 712CO-1-1/8 |
|---|---|
| Series | Champion 712CO Cobalt Silver & Deming Drills |
| Drill type | Heavy-duty Silver & Deming drill bit |
| Size | 1-1/8" |
| Size system | Fractional size |
| Decimal equivalent | 1.125 in |
| Material | Cobalt steel |
| Finish | Gold oxide |
| Point style | 118° split point |
| Shank | 1/2-inch reduced shank |
| Flute length | 3-1/8 inches |
| Overall length | 6 inches |
| Performance level | Heavy duty |
| Package style | Standard |
| Package quantity | 1 |
| Country of origin | Made in USA |
How to Use
Use the 712CO-1-1/8 with the correct speed, feed and workholding for the material. Use suitable cutting fluid when needed, clear chips regularly and avoid forcing the tool to maintain a clean cutting path and extend tool life.
Cutting tools may shatter if misused or overloaded. Wear eye protection and follow the drill and machine manufacturer's operating instructions.
How ordering works
A clear process from order to delivery
Whether you need one replacement tool or a recurring supply order, every step is designed for clear communication, accurate fulfillment and dependable delivery.
Order submitted securely
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Confirmation sent
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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
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Business purchasing
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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.


