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
- Steel
Recommended applications
Typical jobs and operations
- Steel Aluminum Brass Cast Metals Thread Repair Fabrication Machine Assembly Maintenance
- Threading
Compatible machines
Equipment and operating methods
- Manual
- Tapping machine
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 typeTap Sets
Tool subtypeHand Taps
Detailed styleHSS · Bottoming
Manufacturer series308
Series family308
Measurement systemImperial
Tool materialHigh Speed Steel
Coating / finishStandard
Manufacturer part number308-1/2-13-B
Dimensions & fit
Size1/2-13 UNC
Drill / wire / letter designationC
Cutting diameter1/2-13
Flute / cutting length1-21/32
Overall length3-3/8
Pack quantity12
Cutting geometry
Flute count4
Threading
Thread size3081/2-13
Thread standard / formUNC
Threads per inch13.0 TPI
Thread classH3
Tap chamfer styleBottom
04 -- Why Choose this series
Series advantage
Why choose the 308 series
308
HSS hand tap with bottoming chamfer for short lead-in for cutting threads close to the bottom of a blind hole after the thread has been started.
Features supporting this advantage
- HSS hand tap with bottoming chamfer for short lead-in for cutting threads close to the bottom of a blind hole after the thread has been started.
- High Speed Steel
- Standard
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
- 12 bottoming HSS hand tap(s)
- square shank
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 308 1/2-13 12-Pack Bottoming HSS Hand Taps
308-1/2-13-B is a Champion 308 1/2-13 bottoming HSS hand tap made from high-speed steel for accurate, general-purpose metal threading. This tap is supplied in a package of 12.
Key Benefits
- Industrial-quality high-speed steel for faster, more accurate tapping than carbon taps.
- Short lead-in for cutting threads close to the bottom of a blind hole after the thread has been started.
- Square shank fits compatible tap wrenches and production tapping heads.
- Available as a standalone chamfer style or as a matched three-piece set for the same thread size.
- Made in USA Champion tooling for thread repair, fabrication, maintenance and machine assembly.
Applications
- Steel and general metal threading
- Thread repair and maintenance
- Machine assembly and fabrication
- Through-holes and blind holes, using the correct chamfer style
Chamfer Selection
Bottoming: Short lead-in for cutting threads close to the bottom of a blind hole after the thread has been started.
Technical Specifications
| Manufacturer part number | 308-1/2-13-B |
|---|---|
| Product type | Champion 308 HSS hand tap |
| Thread size | 1/2-13 |
| Chamfer style | Bottoming |
| Material | High-speed steel (HSS) |
| Shank | Square shank |
| Included components | 12 bottoming HSS hand tap(s); square shank |
| Package quantity | 12 |
| Country of origin | Made in USA |
How to Use
Secure the workpiece, select the correct drill size and keep the tap aligned with the hole. Use suitable cutting fluid, turn the tap steadily and clear chips regularly. Start with a taper or plug tap before using a bottoming tap in a blind hole.
Cutting tools may shatter if misused. Secure the workpiece, avoid excessive force and follow safe tapping procedures. Wear eye protection and appropriate personal protective equipment. California Proposition 65 warning may apply.
How ordering works
A clear process from order to delivery
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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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4
Tracking provided
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Trackable shipment
5
Delivery to your location
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