1
Order Received Instantly
Your order is validated in real time and pushed straight into our system with no manual handling.
Instant intake
Materials & Applications
Compatibility
Materials & Applications
Recommended use cases for this product across common industrial materials and jobsite applications.
Mild and medium steel, Stainless Steel, Aluminum, Brass, Copper, Non-ferrous metals
CNC and drill press countersinking
Precision chamfering
Flat-head fastener seating
Production machining
Industrial manufacturing and assembly
Product details
Technical Description
Essential product information, specifications, and recommended use before ordering.
Champion 800-1/2X90 1/2" 90° 4-Flute HSS Machine Countersink — Extended-Shank Countersink for Machine Shops
The 800-1/2X90 is an exact 1/2" 90° HSS machine countersink from Champion's 800 four-flute series. Its four cutting edges are designed for balanced, repeatable countersinking, chamfering and deburring of existing holes in production and machining environments.
This configuration combines a 1/2" cutting diameter, 90° included angle, 3-7/8 overall tool length and a 1/2" shank. The extended shank is intended for compatible screw machines, turret lathes and other rigid machine setups where reach, concentricity and a clean finish are important.
Technical Specifications
| Manufacturer part number | 800-1/2X90 |
|---|---|
| Exact cutting diameter | 1/2" |
| Included angle | 90° |
| Number of flutes | Four |
| Material | High-speed steel (HSS) |
| Overall tool length | 3-7/8 |
| Shank diameter | 1/2" |
| Source variant configuration | 1/2" x 90° |
Applications
Use this Champion 800-1/2X90 countersink for machine countersinking, chamfering and deburring existing holes in steel, stainless steel, aluminum, brass, copper and other non-ferrous metals. It is suited to screw machines, turret lathes, drill presses, CNC equipment and other rigid setups using the correct speeds, feeds and cutting fluid.
Four-Flute Machine Countersinking
The four-flute geometry distributes cutting forces around the cone to support smooth cutting, consistent surface finish and reliable flat-head fastener seating. The exact 1/2" by 90° configuration helps match the tool to the required hole and countersink geometry without a visible variant selector.
Secure the workpiece, use the correct machine and arbor, and select speeds, feeds and lubricant for the material and tool diameter. Cutting tools may shatter if misused; wear appropriate PPE and follow the machine and tool manufacturer's instructions.
Most Interesting Product Feature
Product highlight
Most Interesting Product Feature
- Balanced Four-Flute Cutting Geometry — The four evenly spaced cutting edges provide superior stability, concentricity, and surface finish in rigid machine setups, making the 800 series ideal for high-precision and repeatable countersinking.
Bulk Orders
Buying in Bulk?
Take advantage of volume pricing and preferred conditions for larger orders.
Volume pricing for larger orders
Preferred conditions based on your needs
Clear response to help plan purchasing
Request Volume Pricing
Ideal for recurring purchasing, inventory planning and multi-product orders.
Info
Fast & Easy Order Process
From checkout to delivery, every step is built for speed, accuracy and reliability, because nobody buys industrial tools for the thrill of waiting around.
2
Order Confirmation
You receive a clean confirmation with all details, ready to forward internally without editing anything.
Clear details
3
Picking & Packing
Our team prepares the right tooling, quantities and brands, optimized for safe and accurate transport.
Prepared properly
4
Tracking Number Provided
As soon as the shipping label is created, tracking information is sent so you can plan your jobs.
Trackable shipment
5
Fast Delivery to Your Door
Your order shows up where you need it, when you need it, without the usual procurement circus.
Delivered fast