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
- Mild steel
- Steel
Recommended applications
Typical jobs and operations
- High Speed Steel (HSS) Precision-ground cutting edges Hardened 1/4″ hex shank for high torque resistance Drilling in: Mild steel, Sheet metal, Aluminum, Non-ferrous metals Electricians HVAC installers Mechanical contractors Maintenance and repair technicians
- 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
Tool typeDrill Bits
Tool subtypeHex-Shank Drill Bits
Detailed styleHSS
Manufacturer seriesHEX28-FRACTIONS
Series familyHEX28
Measurement systemImperial
Tool materialHigh-speed steel
Manufacturer part numberHEX28-5/16
Dimensions & fit
Size5/16"
Increment1/28 in
Cutting diameter5/16
Flute / cutting length2-7/8
Overall length4
Pack quantity1
Cutting geometry
Point geometry135 Degree Split Point
04 -- Why Choose this series
Series advantage
Why choose the HEX28-FRACTIONS series
HEX28-FRACTIONS
True 1/4″ Hex Shank for Impact Drivers. Eliminates bit slippage and allows rapid tool changes, making HEX28 drills significantly faster and more reliable than round-shank bits in field applications.
Features supporting this advantage
- True 1/4″ Hex Shank for Impact Drivers. Eliminates bit slippage and allows rapid tool changes, making HEX28 drills significantly faster and more reliable than round-shank bits in field applications.
- High-speed steel
- 135 Degree Split Point
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 HEX28-5/16 1/4" HSS Hex Shank Drill Bit — 135° Split Point
The Champion HEX28-5/16 is a professional-grade 1/4" hex shank HSS drill bit for fast, controlled drilling with impact drivers and cordless drills that accept a 1/4" hex shank. This individual drill is the exact 5/16" diameter, engineered for accurate holes in wood, aluminum and low-to-medium strength steel.
A precision-ground 135° self-centering split point starts quickly with reduced walking, while the one-piece heavy-duty steel construction and shorter mechanics-length design improve rigidity and operator control. The hardened 1/4" hex shank transfers torque securely and is built for demanding jobsite drilling.
Technical Specifications
- Exact diameter: 5/16"
- Decimal equivalent: 0.3125
- Manufacturer part number: HEX28-5/16
- Drill type: Hex shank twist drill
- Material: High-speed steel (HSS)
- Point: 135° self-centering split point
- Shank: 1/4" hex quick-change shank
- Flute length: 2"
- Drill length: 2-7/8"
- Overall length: 4"
Applications
Use this Champion HEX28 5/16" hex shank drill for electrical, HVAC, maintenance, construction, automotive and industrial work. It is designed for impact drivers and cordless drills and is suitable for wood, aluminum and low-to-medium steel.
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
Our team prepares the correct products and quantities for safe, accurate transportation.
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
Business purchasing
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