1. Product Overview
The Klein Tools 626-32 Replacement Tap Set is designed as a direct replacement tip for the Klein Triple Taps and 6-in-1 Tapping Tools, specifically models 625-32, 627-20, 623-32, and 626. This durable tap is engineered to facilitate the creation of new machine screw threads, re-form damaged or burred threads, and clear plaster or other obstructions from existing threads. It is a lightweight, professional-grade tool built for precision and longevity.
This set includes taps for #6, #8, and #10 thread spacing, corresponding to tap sizes 10-32, 8-32, and 6-32. It is sold in a quantity of two, ensuring you have a spare for continuous work.

Figure 1: Main view of the Klein Tools 626-32 Replacement Tap Set, showing the various thread sizes.
2. Safety Information
WARNING: Always prioritize safety when using hand tools. Failure to follow these instructions may result in injury or damage to the tool.
- Eye Protection: Always wear approved eye protection when using this tool to prevent eye injuries from flying debris or metal shavings.
- Electrical Safety: This tool is NOT insulated and will NOT protect against electrical shock. Do not use on or near live electrical circuits.
- Intended Use: Do NOT use this tap to pry or chisel. It is designed specifically for threading applications. Misuse can cause damage to the tool and potential injury.
- Proper Handling: Taps are made of hard, brittle steel for effective cutting. Handle with care to prevent snapping or breaking, especially the smaller tap sizes.
3. Setup and Installation
This replacement tap is designed for easy installation into compatible Klein Tools tapping handles (models 625-32, 627-20, 623-32, and 626).
3.1. Required Tools
- Compatible Klein Tools Tapping Handle (e.g., 625-32, 627-20)
- Allen Key (if required by your specific tapping handle model for securing the tap)
3.2. Installation Steps
- Ensure the tapping handle is clean and free of debris.
- If replacing an old tap, carefully remove it from the handle. An Allen key may be needed to loosen a set screw.
- Align the hexagonal end of the new 626-32 replacement tap with the receptacle in the tapping handle.
- Insert the tap firmly into the handle.
- If your handle uses a set screw, tighten it with an Allen key to secure the tap in place. Ensure the tap is seated properly and does not wobble.

Figure 2: Angled view of the tap, highlighting the precision-cut threads for sizes 6-32, 8-32, and 10-32.
4. Operating Instructions
The Klein Tools 626-32 Replacement Tap is designed for manual operation to create or repair threads in various materials, including metal and wood.
4.1. Threading New Holes
- Prepare the Hole: Ensure the hole to be threaded is drilled to the correct tap drill size for the desired thread (e.g., for 6-32, 8-32, or 10-32). The hole should be clean and free of burrs.
- Lubrication: Apply a suitable cutting fluid or lubricant to the tap and the workpiece. This reduces friction, prevents overheating, and extends the life of the tap.
- Starting the Tap: Insert the tap into the hole, ensuring it is perpendicular to the workpiece surface. Apply light, even downward pressure while slowly rotating the tapping handle clockwise (for right-hand threads).
- Cutting Threads: Continue rotating the tap clockwise, applying steady pressure. After every half-turn to full turn, reverse the tap a quarter-turn counter-clockwise. This breaks off the chips and prevents them from binding in the flutes, reducing the risk of tap breakage.
- Completing the Thread: Continue this process until the desired thread depth is achieved.
- Removing the Tap: Once threading is complete, carefully rotate the tap counter-clockwise to remove it from the newly threaded hole.
4.2. Re-forming or Cleaning Threads
For burred or obstructed threads, the tap can be used to clean and re-form them.
- Identify Thread Size: Select the correct tap size (6-32, 8-32, or 10-32) that matches the existing thread.
- Lubricate: Apply cutting fluid to the tap and the existing thread.
- Insert and Rotate: Carefully insert the tap into the existing thread. Gently rotate the tapping handle clockwise, allowing the tap to follow the existing threads. Do not force it.
- Clear Debris: Use the quarter-turn reverse method as described above to clear any debris or re-form the threads.
- Check: Once the tap moves freely, the threads are clean. Remove the tap.

Figure 3: Close-up of the tap, clearly showing the engraved sizes: 6-32, 8-32, and 10-32.
5. Maintenance
Proper maintenance ensures the longevity and performance of your Klein Tools 626-32 Replacement Tap.
- Cleaning: After each use, clean the tap thoroughly to remove all metal chips, cutting fluid residue, and debris. A brush or compressed air can be used.
- Lubrication/Protection: Apply a light coat of rust-preventative oil to the tap after cleaning, especially if storing for extended periods.
- Storage: Store the tap in a dry environment, preferably in a tool case or organizer that protects it from impacts and contact with other tools that could dull or chip the cutting edges. Avoid leaving it loose in a tool cart.
- Inspection: Periodically inspect the tap for signs of wear, dullness, or damage to the cutting edges. A dull tap will require more force and produce poor quality threads.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Tap breaks easily. | Excessive force; incorrect drill size; no lubrication; tap not perpendicular; chips not cleared. | Use less force; verify drill size; apply cutting fluid; ensure tap is straight; reverse tap frequently to clear chips. |
| Poor quality or stripped threads. | Dull tap; incorrect drill size; improper technique; material too hard. | Replace tap if dull; verify drill size; ensure proper cutting technique (clockwise with quarter-turn reverse); use appropriate tap for material hardness. |
| Tap binds or gets stuck. | Chips not cleared; insufficient lubrication; tap not perpendicular. | Reverse tap more frequently; apply more cutting fluid; ensure tap is inserted straight. |
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | 626-32 |
| Brand | KLEIN TOOLS |
| Tap Sizes | 10-32, 8-32, 6-32 |
| Thread Spacing | #6, #8, #10 |
| Quantity | Sold in quantity of 2 |
| Item Weight | 0.1 Ounces (approx.) |
| Product Dimensions | 0.45 x 0.18 x 2.7 inches (approx.) |
| Finish | Powder Coated |
| Operation Mode | Manual |
| Special Features | Replacement for Klein Tools Models 625-32, 626, and 627-20 |
8. Warranty and Support
8.1. Warranty Information
Klein Tools provides a warranty that covers any defects in quality or workmanship. This warranty does not cover tools that have simply worn out from normal use or show signs of abuse. Klein Tools maintains high-quality standards through the use of premium materials and modern manufacturing processes in the USA.
For warranty returns, all authorized Klein Tools distributors are required to process them. If you encounter any issues with a warranty return, consider contacting a different distributor, as most are accustomed to handling these processes efficiently and providing prompt credit.
8.2. Customer Support
For further assistance, technical questions, or support regarding your Klein Tools product, please visit the official Klein Tools website or contact their customer service department. Contact information can typically be found on the product packaging or the manufacturer's website.
Note: Always refer to the latest information provided by Klein Tools for the most up-to-date warranty terms and support contacts.

