Cleveland
Cleveland C55326 Spiral Point Tap Plug 3 Flutes 3/8-24 UNF
Cuts 3/8-24 UNF threads with a TiN-coated high-speed steel spiral-point plug tap featuring three flutes and an H3 thread limit
- Precise UNF threading with 3/8-24 pitch
- Faster chip evacuation via spiral point design
- Extended tool life from TiN-coated high-speed steel
- Accurate 2B class fit for reliable assemblies
- Three-flute geometry balances strength and cutting speed
Cleveland C55326 Spiral Point Tap
The Cleveland C55326 is a spiral point tap designed for creating internal UNF threads in through-hole applications. It suits machinists and maintenance technicians who need reliable thread cutting in metal components. The plug chamfer allows easier starting in existing holes or at the beginning of a cut.
3/8-24 UNF thread capacity
This tap cuts a 3/8 inch diameter thread with 24 threads per inch in a Unified National Fine pitch. The 75 percent thread drill size is 8.50 mm, providing a specific hole target for standard engagement. The H3 thread limit and 2B class of fit define the tolerance range for general-purpose fastening. Thread length reaches 1 1/4 inches within an overall length of 2 15/16 inches.
Three-flute high-speed steel with TiN coating
Three flutes balance chip evacuation and tool rigidity during the tapping process. High-speed steel construction withstands the cutting forces encountered in steel and alloy workpieces. A titanium nitride coating reduces friction and extends tool life compared to uncoated alternatives. Right-hand cutting direction matches standard threading requirements.
Highlights
- Precise UNF threading with 3/8-24 pitch
- Faster chip evacuation via spiral point design
- Extended tool life from TiN-coated high-speed steel
- Accurate 2B class fit for reliable assemblies
- Three-flute geometry balances strength and cutting speed
Specifications
| Brand | CLEVELAND |
|---|
Questions about this item
Will the 3/8-24 UNF spiral point tap fit the existing 8.50 mm drill holes in my older fixture plates?
Yes, the tap is designed for a 75 percent thread drill size of 8.50 mm, matching those existing holes.
How can I verify the 3-flute H3 tap is cutting a correct 2B class internal thread during use?
Check that chips eject forward through the flutes and gauge the finished thread with a 3/8-24 UNF 2B thread plug gauge.
Does the TiN-coated high-speed steel tap come with a handle or wrench in the box?
The package contains only the C55326 spiral point tap; a compatible tap wrench or T-handle must be purchased separately.
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