Cleveland
Cleveland C55346 Spiral Point Tap #10-32 UNF 2 Flutes HSS TiN
A #10-32 UNF spiral-point tap in HSS with TiN coating cuts right-hand threads in through-holes using two flutes
- TypeTaps
- Spiral point clears chips forward for smoother threading
- #10-32 UNF thread fits fine-pitch fasteners
- TiN coating reduces wear on high-speed steel
- Two flutes balance strength and chip evacuation
- H7 limit with 2B class ensures precise fit
Thread size #10-32 UNF spiral-point tap
This Cleveland C55346 tap cuts #10-32 UNF threads in through-holes using a spiral-point design that pushes chips ahead of the cut. It is made from high-speed steel with a TiN coating for wear resistance. The tool suits maintenance technicians and machinists producing standard unified fine threads in metal components.
High-speed steel construction with TiN coating
The HSS substrate and TiN surface treatment reduce friction and extend tool life during repetitive tapping operations. Right-hand spiral flutes evacuate chips forward, lowering cutting torque and heat buildup in the workpiece. Two-flute geometry balances chip clearance with thread finish quality in general-purpose applications.
75 percent thread depth with #21 drill size
The tap is designed for 75 percent thread engagement when used with a #21 drill, producing a class 2B fit within H7 limits. Thread length measures 7/8 in on an overall length of 2 3/8 in. No additional accessories or software are included with this single cutting tool.
Highlights
- Spiral point clears chips forward for smoother threading
- #10-32 UNF thread fits fine-pitch fasteners
- TiN coating reduces wear on high-speed steel
- Two flutes balance strength and chip evacuation
- H7 limit with 2B class ensures precise fit
Specifications
| Brand | CLEVELAND |
|---|---|
| Type | Taps |
Questions about this item
How do I install the C55346 spiral point tap and what step is commonly missed?
Drill the hole with a #21 drill for 75 percent thread, then run the tap straight using a tap wrench; the step often missed is keeping the tap perpendicular to avoid breaking the flutes.
What maintenance or replacement will the C55346 tap need after extended use?
The HSS TiN cutting edges will dull over time; when threads become rough or oversized, replace the tap — resharpening is not practical for this tool.
What limit appears first when using the C55346 tap continuously in tough material?
Heat buildup in the high-speed steel body reduces cutting efficiency and can cause the TiN coating to degrade, forcing you to slow down or pause.
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