Champion 302 Carbon Steel Hand Taps — Taper, Plug & Bottoming Styles

The Champion 302 series carbon steel hand taps are designed for general-purpose threading in steel, aluminum, brass and cast metals. Available in Taper, Plug and Bottoming chamfer types, these taps deliver accurate, clean threads for production, maintenance, repair and metal fabrication work. Precision-ground flutes ensure smooth cutting and chip evacuation while the carbon-steel body provides durability for both hand and machine use.

Key Advantages

• Three chamfer types (Taper / Plug / Bottom) for all threading situations.
• High-quality carbon steel construction for general-purpose threading.
• Precision-ground cutting edges for clean, true, burr-free thread formation.
• Available in a complete range of UNC, UNF and Metric thread sizes.
• Ideal for tapping through-holes, blind holes and starting threads.
• Use with T-handle or machine tapping (low speed recommended).

Chamfer Types Explained

Taper (7–10 threads chamfered)
Best for starting a thread. Long lead-in makes alignment easier and reduces the risk of cross-threading. Ideal for through-holes and beginners.

Plug (3–5 threads chamfered)
The most common “general purpose” chamfer. Balances ease of starting with the ability to cut deeper into the hole. For through-holes & blind holes.

Bottoming (1–2 threads chamfered)
Designed for threading to the bottom of a blind hole. Used after starting the thread with a taper or plug tap.

Technical Specifications

Champion 302-SET — Carbon Steel Hand Tap Set

The 302-SET provides a complete selection of popular hand taps packaged in an organized storage case. Perfect for shops, maintenance departments, job-site repair and fabrication work. Includes all three chamfer types so you can start threads properly and finish them cleanly to full depth.

Set Features

• Includes Taper, Plug and Bottoming taps for each thread size.
• Ideal for starting, advancing and finishing threads in blind holes.
• Precision-ground carbon steel ensures long life with correct lubrication.
• Organized case keeps sizes visible and accessible on job sites.
• Professional shop-grade threading quality.

Contents – 302-SET (Hand Tap Set)

Champion Chamfer Diagram (Reproduced in Text Format)

TAPER TAP (Lead: ~7–10 threads)
- Long, gradual taper
- Easiest to start
- Best alignment
- Ideal for through-holes and beginning threads

PLUG TAP (Lead: ~3–5 threads)
- Medium chamfer
- General-purpose tap
- Suitable for most everyday threading jobs

BOTTOMING TAP (Lead: ~1–2 threads)
- Almost full-size cutting diameter at the tip
- Designed to reach the bottom of a blind hole
- Must be used after taper or plug tap to establish the thread path

Textual Reproduction of Champion’s Diagram Layout

TAPER TAP (long lead)
|-----------------------|
\ \ \ \ \ \ \ \ \ \ \ \  (7–10 lead threads)
-------------- full thread diameter begins here

PLUG TAP (medium lead)
|-------------|
\ \ \ \ \     (3–5 lead threads)
----------- full thread diameter begins earlier

BOTTOMING TAP (short lead)
|----|
\ \  (1–2 lead threads)
----- cutting diameter almost immediate
  

Use cutting fluid for best results. Maintain alignment to avoid cross-threading. Hand tapping recommended for small sizes. Always wear proper PPE.