Greenfield Threading
Greenfield Threading Spiral Point Tap 3/8-24 UNF H5 TiN pneumatic accessory
Creates precise 3/8-24 UNF threads in metal using a TiN-coated high-speed steel spiral point tap with H5 thread limit
- Spiral point design pushes chips ahead for smoother tapping
- TiN coating reduces friction and extends cutting life
- High-speed steel construction handles repeated threading tasks
- H5 thread limit fits 2B-3B class of fit requirements
- 3/8-24 UNF size matches standard fine-thread applications
3/8-24 UNF Spiral Point Tap
This Greenfield Threading spiral point tap cuts 3/8-24 UNF threads in a right-hand direction. It is designed for through-hole applications where chips are pushed ahead of the cutting edges. The H5 thread limit targets a 2B-3B class of fit for general-purpose threading work.
High-Speed Steel with TiN Coating
The tap body is made from high-speed steel and coated with titanium nitride for increased surface hardness and wear resistance. A 3/4-inch thread length and three-flute geometry provide chip evacuation in through holes. The 75 percent thread drill size is specified as 8.50 mm for hole preparation.
Plug Chamfer for Through Holes
The plug chamfer style requires a through hole or a blind hole with sufficient depth beyond the full thread requirement. It is not suitable for threading to the bottom of a blind hole. Users must verify the 8.50 mm drill size matches their specific material and engagement needs before cutting.
Highlights
- Spiral point design pushes chips ahead for smoother tapping
- TiN coating reduces friction and extends cutting life
- High-speed steel construction handles repeated threading tasks
- H5 thread limit fits 2B-3B class of fit requirements
- 3/8-24 UNF size matches standard fine-thread applications
Specifications
| Brand | CHICAGO-LATROBE |
|---|
Questions about this item
What thread standard does the 3/8-24 UNF tap follow, and what class of fit does it produce?
It cuts Unified National Fine threads to a 2B-3B class of fit with an H5 thread limit.
What are the overall length and thread length of this spiral-point tap?
Overall length is 2 15/16 in and the thread length is 3/4 in.
How is the tap installed in a pneumatic holder, and what drill size must be used first?
Secure the 3-flute shank in a compatible collet or chuck, then drill the hole with an 8.50 mm bit before tapping.
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