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
- Aluminum
- Non-ferrous metals
- Steel
Recommended applications
Typical jobs and operations
- 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
- Holemaking
03 -- Complete Technical Specifications
Technical data
Complete technical specifications
Open only the groups you need to confirm construction, dimensions, and operating requirements.
Construction & identification
Tool typeCountersinks
Tool subtypeSingle-Flute Countersinks
Detailed styleHSS · 100°
Manufacturer seriesXL801
Series familyXL801
Measurement systemImperial
Tool materialHigh-speed steel
Manufacturer part numberXL801-3/8X100
Dimensions & fit
Size3/8"
Increment1/100 in
Cutting diameter3/8"
Overall length1-3/4
Shank diameter1/4
Pack quantity1
Cutting geometry
Countersink angle100.0°
04 -- Why Choose this series
Series advantage
Why choose the XL801 series
XL801
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.
Features supporting this advantage
- 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.
- High-speed steel
05 -- Compatibility & What's Included
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 XL801-3/8X100 3/8" 100° Brute Single-Flute HSS Countersink — Heavy-Duty Single-Edge Countersink
The XL801-3/8X100 is an exact 3/8" 100° 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 3/8" cutting diameter, 100° included angle, 1-3/4 overall tool length and a 1/4 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 | XL801-3/8X100 |
|---|---|
| Exact cutting diameter | 3/8" |
| Included angle | 100° |
| Cutting geometry | Single flute, high-hook style |
| Material | High-speed steel (HSS) |
| Overall tool length | 1-3/4 |
| Shank diameter | 1/4 |
| Source variant configuration | 3/8" x 100° | Shank 1/4" |
Applications
Use this Champion XL801-3/8X100 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 3/8" by 100° configuration lets you match the countersink to the required fastener geometry without a visible variant selector.
Secure the workpiece, use a compatible 1/4 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.
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.
1
Order submitted securely
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Secure submission
2
Confirmation sent
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Details confirmed
3
Picking and packing
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Carefully prepared
4
Tracking provided
As soon as the carrier label is created, the tracking information is sent to you.
Trackable shipment
5
Delivery to your location
Your order travels to the selected address with clear visibility into its progress.
Dependable delivery
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