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
- Stainless steel
- Aluminum
- Steel
Recommended applications
Typical jobs and operations
- Steel, Stainless (light), Aluminum, Brass, Bronze, Cast Metals Thread repair blind-hole threading fabrication machine assembly automotive repair maintenance shops installation work
- 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 styleCarbon Steel · 3-Piece Set
Manufacturer series302-SET
Series family302
Measurement systemWire/Letter/Number
Tool materialCarbon Steel
Coating / finishStandard
Manufacturer part number302-5-40-S
Dimensions & fit
Size#5-40 UNC
Drill / wire / letter designation#5
Cutting diameter5-40
Flute / cutting length5/8
Overall length1-15/16
Pack quantity1
Set piece count3
Cutting geometry
Flute count3
Threading
Thread size302-5
Thread standard / formUNC
Threads per inch5.0 TPI
Thread classN/A
Tap chamfer styleTaper, Plug, Bottom
04 -- Why Choose this series
Series advantage
Why choose the 302-SET series
302-SET
Every sizes possible on the market available, popular, standard and special.
Features supporting this advantage
- Every sizes possible on the market available, popular, standard and special.
- Carbon Steel
- Standard
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 302-5-40-S Carbon Steel 3-Piece Taper, Plug & Bottoming Hand Tap Set | #5-40 UNC — Light-Duty Hand Tapping
The 302-5-40-S is a Champion 302 carbon-steel hand-tap set for #5-40 UNC threads. It includes one taper, one plug and one bottoming tap so the same thread can be started, advanced and finished with the correct chamfer.
Champion 302 hand taps are designed for general-purpose threading, re-threading and thread repair in low- to medium-strength materials. Use a handheld tap wrench with cutting fluid and steady alignment for clean, controlled threads in steel, light stainless steel, aluminum, brass, bronze and cast metals.
Exact 302 Variant Specifications
| Manufacturer part number | 302-5-40-S |
|---|---|
| Source variant configuration | 5-40 | Set (Taper Plug & Bottom) |
| Source variant SKU | CHA-302-5-40-S |
| Thread size | #5-40 UNC |
| Thread standard | UNC |
| Tap style | 3-Piece Taper, Plug & Bottoming Hand Tap Set |
| Chamfer | Taper, plug and bottoming chamfers |
| Series | Champion 302 |
| Material | Carbon steel |
| Flute design | Straight flutes for general-purpose hand tapping |
| Set contents | One taper tap, one plug tap and one bottoming tap |
| Recommended use | Handheld tap wrench, light-duty threading and re-threading |
Recommended Application
Choose this exact 302-5-40-S when you need the #5-40 UNC thread size and 3-piece taper, plug & bottoming hand tap set configuration. It is suitable for maintenance, automotive repair, machinery assembly, fabrication, installation work and restoring existing threads. For a blind hole, start with a taper or plug tap before using a bottoming tap to reach full depth.
Use cutting fluid, keep the tap aligned and reverse periodically to clear chips. Wear appropriate PPE and follow safe hand-tapping practices.
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