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Materials & Applications
Compatibility
Materials & Applications
Recommended use cases for this product across common industrial materials and jobsite applications.
Mild and medium steel, Aluminum, Brass, Copper, Non-ferrous metals
Countersinking flat-head fasteners
Deburring drilled holes
Breaking sharp edges
Fabrication and maintenance work
Automotive and industrial assembly
Product details
Technical Description
Essential product information, specifications, and recommended use before ordering.
Champion XL801-5/8X90 5/8" 90° Brute Single-Flute HSS Countersink — Heavy-Duty Single-Edge Countersink
The XL801-5/8X90 is an exact 5/8" 90° HSS countersink from Champion's Brute XL801 series. Its single-flute, high-hook cutting geometry is designed for self-centering countersinking, chamfering and deburring in steel, aluminum and other machinable metals.
This configuration combines a 5/8" cutting diameter, 90° included angle, 2-1/4 overall tool length and a 3/8 shank. The single cutting edge supports controlled material removal, chip clearance and smooth finishes in portable drills, drill presses and Bridgeport-type machines.
Technical Specifications
| Manufacturer part number | XL801-5/8X90 |
|---|---|
| Exact cutting diameter | 5/8" |
| Included angle | 90° |
| Cutting geometry | Single flute, high-hook style |
| Material | High-speed steel (HSS) |
| Overall tool length | 2-1/4 |
| Shank diameter | 3/8 |
| Source variant configuration | 5/8" x 90° | Shank 3/8" |
Applications
Use this Champion XL801-5/8X90 countersink to seat flat-head fasteners, chamfer drilled holes, break sharp edges and deburr metal in fabrication, automotive repair, structural work, maintenance and industrial assembly. The XL801 is suited to portable drills, drill presses and Bridgeport-type machines when the workpiece is secure and the correct speed and feed are used.
Why Choose a Single-Flute Countersink?
The single cutting edge gives the tool room for chip evacuation and a controlled cut across a wide range of hole sizes. The exact 5/8" by 90° configuration lets you match the countersink to the required fastener geometry without a visible variant selector.
Secure the workpiece, use a compatible 3/8 shank arbor or chuck, and select moderate RPM, steady feed and suitable cutting fluid for the material. 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
- Single Flute Controlled Cutting Action — The single cutting edge delivers aggressive yet smooth material removal with excellent chip evacuation, making XL801 countersinks ideal for heavier countersinking operations where precision and finish still matter.
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